neco 2023 biology essay questions and answers

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NECO Biology Questions and Answers For 2023/2024 (Theory and Objectives)

Biology NECO Questions 2023. I will be showing you the NECO Biology objective and theory questions and answers for free in this post. You will also understand how NECO Biology questions are set and how to answer them.

The National Examinations Council (NECO ) is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and December/January respectively.

Table of Contents

NECO Biology Question and Answers Essay and OBJ (Expo)

The 2023 NECO Biology expo will be posted here today 21st July during the NECO Biology examination. Keep checking and reloading this page for the answers.

NECO 2023 Biology Answers Loading.. .

OBJ Answers:

1-10: BBEDACCAEE

11-20: DDCEABDAEC

21-30: EBBBEADBDD

31-40: EDACCCBCEA

41-50: EBBCACBAEC

51-60: DDABBDDDBE

NECO Biology Essay Answers:

The cell theory states that:

– All living organisms are made up of one or more cells.

– The cell is the basic unit of life.

– All cells arise from pre-existing cells.

– Robert Hooke, who discovered cells in 1665 and coined the term “cell”.

– Matthias Schleiden and Theodor Schwann, who proposed the cell theory in 1839-1840.

– Large, brightly colored petals that attract insects.

– Nectar-producing glands to feed the insects.

– A strong, sweet fragrance to attract the insects.

– A landing platform for the insects to rest on.

– Pollen that is sticky and easily attaches to the insects.

– Ginger: Rhizome

– Banana: Rhizome

– Sweet potato: Tuber

– The mouth mechanically breaks down the bread by chewing and mixes it with saliva, which contains enzymes that begin breaking down the carbohydrates in the bread.

– The esophagus moves the food down to the stomach, where it is mixed with stomach acid and enzymes that further break down the bread.

– The small intestine absorbs the nutrients from the bread, such as carbohydrates, proteins, and fats, into the bloodstream.

– The large intestine absorbs water and electrolytes from the remaining food waste, forming feces.

– The rectum stores feces until they can be eliminated through the anus.

Amoeba —> Hydra —> Tilapia —> Toad —> Snake.

(i) Small, lightweight seeds that can be easily carried by the wind.

(ii) Hairs or wings on the fruit that increase surface area and help to catch the wind.

(iii) A dry, papery fruit that splits open easily to release the seeds.

To determine if the shoot of a plant is positively phototropic.

=Apparatus:=

A potted plant, a light source, a ruler, a marker.

=Method/Procedure:=

(i) Place the plant in a dark room for 24 hours to ensure that it is not positively or negatively phototropic.

(ii) Place the light source at a fixed distance from the plant, with the light shining directly on the plant’s shoot.

(iii) Turn on the light source and leave it on for 24 hours.

(iv) After 24 hours, measure the distance between the tip of the shoot and the light source.

(v) Mark the new position of the shoot tip on the ruler.

(vi) Repeat the experiment two more times, moving the light source to a different position each time.

=Observation:=

The shoot of the plant will grow towards them light source, bending in the direction of the light.

=Conclusion:=

The shoot of a plant is positively phototropic and grows towards a light source.

=Aerobic Respiration=

(i) Occurs in the presence of oxygen

(ii) Produces a large amount of ATP

(iii) Carbon dioxide and water are produced as waste products

=Anaerobic Respiration=

(i) Occurs in the absence of oxygen

(ii) Produces a small amount of ATP

(iii) Lactic acid or ethanol is produced as a waste product.

=Complete Metamorphosis=

(i) Four distinct stages: egg, larva, pupa, adult.

(ii) Larva looks completely different from the adult.

=Incomplete Metamorphosis=

(i) Three stages: egg, nymph, adult.

(ii) Nymph looks similar to the adult, just smaller.

– Aim: To determine if chlorophyll is necessary for photosynthesis to take place.

– Apparatus: Two plants of the same species, one with leaves covered in aluminum foil, a light source, test tube, water, and a beaker.

– Method/procedure: Place one plant in a dark room and cover its leaves with aluminum foil. Place the other plant in front of a light source. After a few hours, pluck a leaf from each plant and place them in separate test tubes filled with water. Place the test tubes in a beaker and keep them in the dark.

– Observation: After a few hours, observe the test tubes to see which one has produced more oxygen bubbles.

– Conclusion: If the test tube with the leaf from the plant exposed to light produces more oxygen bubbles, then chlorophyll is necessary for photosynthesis to take place.

(i) Overuse of synthetic fertilizers

(ii) Overgrazing

(iii) Deforestation

(iv) Soil erosion

(i) Hearing loss

(ii) Sleep disturbance.

(i) Crop diversity: Planting different crops in the same field over time to avoid the buildup of pests and diseases.

(ii) Soil health: Planting crops that have different nutrient requirements to maintain soil fertility and prevent soil erosion.

(iii) Pest management: Planting crops that are not susceptible to the same pests and diseases in succession.

(i) Reduced leaves or spines to minimize water loss through transpiration.

(ii) Thick cuticles and waxy coatings to reduce water loss through the epidermis.

(iii) Deep roots to tap into underground water sources.

(iv) CAM photosynthesis to reduce water loss during photosynthesis.

(v) Ability to enter dormancy during drought periods.

(i) Similarity in bone structure between birds and reptiles, especially in the skull and pelvis.

(ii) Presence of scales on bird feet and legs, which are also found in reptiles.

(iii) Similarity in egg-laying and incubation between birds and reptiles.

(i) Detoxification of harmful substances in the blood.

(ii) Production of bile to aid in digestion.

(iii) Storage of glycogen, vitamins, and minerals.

(iv) Regulation of blood glucose levels.

(v) Production of blood clotting factors.

(i) Reforestation: Planting new trees in areas where forests have been cleared or degraded.

(ii) Reduced impact logging: Using sustainable logging practices that minimize damage to the forest ecosystem.

(iii) Protected areas: Establishing and maintaining protected areas for wildlife and biodiversity conservation.

(iv) Community forestry: Encouraging local communities to manage forests sustainably for their own benefit and for the benefit of future generations.

neco 2023 biology essay questions and answers

(i) Protection: the calyx protects the flower bud before it opens and the developing fruit after fertilization.

(ii) Support: the sepals of the calyx can provide support for the petals and reproductive structures.

(i) Insulin: regulates blood sugar levels.

(ii) Estrogen: regulates female reproductive system and secondary sexual characteristics.

(iii) Testosterone: regulates male reproductive system and secondary sexual characteristics.

(iv) Adrenaline: prepares the body for “fight or flight” response to stress.

(v) Melatonin: regulates sleep-wake cycles.

(i) Gene therapy: correcting genetic disorders by introducing functional genes into the patient’s cells.

(ii) Predictive medicine: using genetic testing to identify individuals who are at risk for certain diseases and develop personalized prevention or treatment plans.

(i) Large surface area: to maximize light absorption.

(ii) Thin and flat shape: to reduce the distance that light needs to penetrate into the leaf.

(iii) Chlorophyll pigments: to absorb light energy and convert it into chemical energy.

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NECO Biology Questions and Answers For Practice

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The questions below are the NECO past questions and answers that will help you in your 2023 NECO Biology Questions.

1. Plants are classified into the following classes except

(a)Bryophyte.

(b) Coelenterate.

(d) thallophyta.

(e) Spermatophyte.

2. The cell wall of plants is rigid due to the presence of?

(a) Cambium

(b) cellulose

(d) chloroplast

3. The structure responsible for the transportation of mineral salt from the root to other parts of the plant is?

(a)Collenchyma

(d) sclerenchyma

4. Which of the following cell organelles traps sunlight energy in plant?

(a)Chloroplast

(b) Endoplasmic reticulum

(d) Ribosome (e) Vacuole

5. The following conditions are necessary for photosynthesis except

(a) Carbon(iv)oxide.

(b) chlorophyll

6. Which of the following organisms carries out photosynthesis?

(d) plasmodium

7. Which of these is an amphibian?

8. A flower with two or more fused carpels is called

(a) Apocarpous

(b) monocarpous

(d) pistillate

(e) syncarpous

9. The response of plants to the stimulus of touch is called?

(a) Chemotropism

(b) geotropism

(d) phototropism

(e) thigmotropism

10. Which of the following is a bryophyte?

(a) Bladder wort

(b) Fly trap

(d) Pitcher

11. Cellular respiration occurs in the

(a) Chloroplast

(b) endoplasmic reticulum

(d) mitochondrion

(e) nucleus

12. In a moss plant, spores are produced in the

(a) Capsule

13. Exoskeleton is a characteristic feature of

(b) earthworm

(d) millipede

(e) tapeworm

14. Which of the following influences growth in plants?

(a) Acetic acid

(d) Ethylene

15. Land snail belongs to the phylum

(a) Annelida

(b) Arthropoda

(d) Mollusca

(e) nematode

16. The opening of the anthers and stigmas of a bisexual flower at the same time is called

(a) Cleistogamy

(b) dichogamy

(d) protandry

(e) protogyny

17. The following are the effect of auxins on plant except in

(a) Flowering

(b) fruiting without fertilization

(d) root formation

(e) stem elongation

Use the diagram below to answer questions 18 and 19.

18. The diagram represents the internal structure of a

19. The part labeled I is the

(b) endodermis

20. Which of these is a water soluble vitamin?

(a) A

21. The following diseases are airborne except

(a) Clolera

(b) measles

(d) pneumonia

(e) small pox.

22. The excretory organ of insects is called

(a) Contractile vacuole

(b) flame cell

(d) malphighian tubule

(e) nephridium

23. Which of these animals undergo metamorphosis

24. Villi are finger-like structures found in the

(a) Large intestine

(d) stomach

(e) tongue.

25. In mammals, sperms are formed in the

(a) Cowper’s gland

(b) scrotal sac.

(d) seminiferous tubules

(e) vas deferens

26. Which of the following is not a part of the mammalian brain?

(a) Cerebellum

(b) cerebrum

(d) spinal cord

(e) Thalamus

27. In plant, Chlorosis is caused by the deficiency of

(b) magnesium

(d) potassium

(e) Sulphur

28. Which of the following diseases is not sexually transmitted

(b) Hepatitis

(d) influenza

(e) Syphilis

29. Which of the following is not a caste in a termitarium.

(d) soldiers

(e) workers

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30. The structure responsible for excretion in tape worm is called

(a) Cell membrane

(b) contractile vacuole

(d) malphigian tubule

31. The mode of nutrition of mushroom is

(a) autotrophic

(b) epiphytic

(d) saprophytic

(e) symbiotic

32. The earthworm is an example of

(b) Coelenterata

(d) nematoda

(e) Platyhelminthes

33. Fat and oil are also known as

(b) fatty acids

(e) carbohydrates

34. Gaseous exchange in the lungs occurs at the

(a) Alveolus

(b)bronchus

(c)bronchiole

(e) trachea

35. The following are pigment except

(d) haemoglobin

(e) melanin

Use the diagram below to answer questions 36 – 38.

36. The type of placentation shown above is found in

(a) cana lily

(d) pride of Barbados

(e) sunflower

37. the part labeled x is the

38. the type of placentation represented in the diagram is

(d) marginal

(e) parietal

39. the growth that occurs at the tip of shoot and root is called

(a) allometric

(d) primary

(e) secondary

40. carnassial teeth are found in

41. Which of the following bones is not a part of axial skeleton?

(a) Backbone

(e) Sternum

Use the diagram below to answer questions 42 and 43

42. The part labeled ii is the

(b) hyaline cartilage

(d) synovial cavity

(e) synovial membrane

43. The function of the part labeled iii is to

(a) Soften the bones

(b) join bones together

(d) protect bones from wearing

(e) reduce friction at joints

44. The part that supplies food and oxygen to the eye is

(a) Choroids

45. The part of the male reproductive system that stores sperm is

(b) epididymis

(d) seminal vesicle

(e) vas deferens.

46. An organ in bird that grinds its food is

47. Which of the following animals exhibit basking

48. The following are functions of the sympathetic nervous system except

(a) Dilation of pupil of eye.

(b) inhibition of saliva secretion

(d) reduction of urine output

(e) stimulation of ejaculation

49. The following homeostatic mechanisms are carried out by mammals except

(a) Excretion

(b) osmoregulation

(d) reproduction

(e) thermoregulation

50. Part of the brain that controls blood pressure is called

(d) medulla oblongata

(e) pons varolii

51. Haemorrhage is caused due to the deficiency of vitamin

52. The control method of pests using predators is called

(a) Biological

(b) chemical

(d) mechanical

(e) physical

53. The following are vectors except

(a) Black fly

(b) butterfly

(d) mosquito

(e) tsetse fly

54. The deficiency of proteins in a developing child result in

(a) Beri beri

(b) kwashiorkor

(d) rickets

55. The theory of “use and disuse” of body parts was propounded by

(a) Carl Linneaus

(b) Charles Darwin

(d) Jean Lamarck

(e) Robert Hooke

56. The knowledge of heredity and variation are not required in

(a) Blood transfusion

(b) crime detection

(d) longevity

(e) marriage

57. Which of these is not a pollutant

(a) Carbon dioxide

(b) Lead oxide

(d) Nitrogen oxide

(e) sulphur dioxide

58. The topmost layer of a typical soil profile is

(b) coarse sand

59. Plants that survive in marine habitats are called

(a) Halophytes

(b) hydrophytes

(d) saprophytes

(e) xerophytes

60. The felling of trees in a forest is called

(a) Afforestation

(b) deforestation

(d) forest pruning

(e) re-afforestation

Answer any three questions only

1a. State one role each of the following in photosynthesis

(i) Sunlight

(ii) Chlorophyll

b. List five types of bones found in the forearm of man

c. Mention three functions of a worker caste in termitarium

d. Define ecosystem

e. Draw a well labelled diagram (8-10cm long) of the nephron

2a. Define the following

(ii) Implantation

(iii) Species

(iv) Saprophytes

b (i) State four functions of the mammalian skeleton

(ii) Mention two muscles that bring about movement of a forearm

(iii) Name three digestive enzymes found in the small intestine and state one function of each

3a. (i) Mention three diseases of the liver

(ii) In a tabular form, state five differences between plant and animal cells

b. Using annotated diagrams only, illustrate the carbon cycle.

c. (i) List two types of supporting tissues in plant

(ii) Give two characteristics of a reptile

4a. Define the following terms

(i) Diffusion

(ii) Osmosis

(iii) plasmolysis

b (i) State four effects of overcrowding

(ii) mention two ways of conserving wildlife.

(iii) Give two examples of social animals

c (i) Define metamorphosis

(ii) List two examples of insects that undergo incomplete metamorphosis

(iii) Give two examples of a berry fruit

5a. (i) Draw a well labelled diagram (8-10cm long) of the human alimentary canal

(ii) Complete the table below

b. T T and t t are monohybrid plants representing tallness and shortness respectively

By means of crossing, show the F1 generation
Using punnet square method, show the F2 generation
Give the phenotypic ratio of the F1 and F2 generations shown above

That’s all about NECO Biology Questions and Answers for 2022 (Theory and Objectives). If you have any questions, kindly drop your question in the comment box.

Last Updated on July 21, 2023 by Admin

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NECO ANSWERS , Past Questions & Answer

2023 NECO: Biology Essay And Objectives Questions with Solutions

NECO BIOLOGY ESSAY SOLUTIONS

a (i) the cell Theory state that all living things are made up of a cell which is the structural and functional unit of life. That new cells arise from pre-existing cells by cell division.

Robert Hooke
Matthias schleiden
The flowers are large
Possesses nectar
The flowers are brightly coloured to attract insects pollination.
Its pollen grains are heavy and sticky.
Ginger – by rhizome
Banana – by sucker
Sweet Potato – by tuber

c. When bread is ingested in the mouth, batang mixes it with saliva which contains ptyalin converting it into maltose. It enters the muscular chamber the stomach, it is churned and retained for three to four hours. It then passes to the small intestine where it is acted upon by amylopsin to complete breakdown to maltose and alkaline, intestinal juice that break down maltose to glucose. The glucose is absorbed and transported by capillaries to the liver which processes it. Undigested food passes to the large intestine where water is absorbed and makes the wastes to become semi solids called faeces. The faces then pass into the rectum and out of the body via the anus.

NUMBER FOUR

(4ai) (PICK ANY THREE) (i) The crops with tap roots should be followed by those with fibrous root system. (ii) Selection of the crop should be demand based. (iii) The selection of crops should be problem based. (iv) The selection of crops should suit to the farmer’s financial conditions. (v) More exhaustive crops should be followed by less exhaustive crops. (vi) The crops selected should also suit to the soil and climate conditions. (vi) The crops selected should also suit to the soil and climate conditions.

(4aii) (PICK ANY FIVE) (i) The presence of thick, waxy cuticles on leaves: (ii) Stomata present in the upper epidermis only: (iii) Shrinking of hinge cells when flaccid: (iv) Flashy succulent leaves: (v) Have reduced number of stomata: (vi) Sunken stomata or presence of crypts and leaf surface covered with fine hairs. (vii) Closed stomata in the presence of light and opened stomata in the absence of light: (viii) Leaves are reduced to spines, needles, or scales and they are folded or rolled when flaccid

(4bi) (i) Feathers : Feathers are modified scales that provide insulation and enable flight in birds. Some fossil reptiles, such as Archaeopteryx and Microraptor, also had feathers, suggesting that they were an ancestral trait that evolved before the divergence of birds and reptiles. (ii) Bones : Birds have hollow bones that reduce their weight and enhance their flight ability. Some fossil reptiles, such as Coelophysis and Pterosaurs, also had hollow bones, indicating that they were an adaptation to a fast and agile lifestyle. (iii) Eggs : Birds lay hard-shelled eggs that protect their embryos from dehydration and predation. Reptiles also lay hard-shelled eggs, implying that they share a common reproductive strategy that originated in their ancient ancestors.

(4bii) (PICK ANY FIVE) (i) Regulates amino acids. ((ii) Regulates blood clothing (iii) Stores Vitamins and Minerals. (iv) Processes glucose (v) Filters blood (vi) Bile production (vii) Albumin production (viii) Resists infections.

(4c) (PICK ANY FOUR) (i) Reforestation. (ii) Afforestation (iii) Protect Existing Forests. (iv) Sustained Yield Method. (v) Produce Less Waste (vi) Monitor Agriculture (vii) Planned and Regulated Tree-cutting (viii) Laws and Rules Help Prevent Deforestation.

(5bi) (PICK ANY TWO) (i) Calyx protects the flowers in bud condition from the outer injury. (ii) The calyxes are usually green in colour, but sometimes, it may be coloured as petalloid, which attract insects and helps in pollination. (iii) In certain cases, calyx develop spur and can store nectar and helps in seed dispersal.

(5bii) (PICK ANY FIVE) (i) Testosterone (ii) Thyroxine (iii) Estrogen (iv) Adrenaline (v) Epinephrine (vi) Progesterone (vii) Glucagon (viii) Growth hormone (ix) Cortisol (x) Gonadotropin releasing hormone (GnRH).

(5ci) (PICK ANY TWO) (i) Studies of inheritance (ii) Mapping disease genes. (iii) Diagnosis and treatment. (iv) Genetic counseling.

(5cii) (PICK ANY THREE ) (i) Chloroplast contains a photosynthetic pigment called chlorophyll. (ii) The stomata are located on the backside of the leaves which helps regulate water loss from the leaves. (iii) Leaves have a thin structure so that they can provide a short distance for carbon dioxide to diffuse into leaf cells (iv) The veins of leaves help to transport maximum water molecules and water to all parts of the leaves. (v) The plant produces larger leaves, which means a larger surface area for maximum absorption of sunlight.

BIOLOGY OBJECTIVE SOLUTIONS 01-10: BBEDAACADA 11-20: DDCEADDAEC 21-30: BBBBEDDBDD 31-40: EDACCCBCEA 41-50: EBBCACBABC 51-60: DDABEDDDBE

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NECO Biology Questions and Answers 2023 (100% Sure) Theory & Obj Solution

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BIOLOGY-ANSWERS

NECO BIOLOGY ANSWERS •••••••••••••••••••••••••••••••••••••

INSTRUCTION; ANSWER THREE(3) QUESTIONS ONLY

(1ai) The cell theory states that: (i) All living organisms are made up of one or more cells. (ii) The cell is the basic unit of life. (iii) All cells arise from pre-existing cells.

(1aii) (i) Robert Hooke, who discovered cells in 1665 and coined the term “cell”. (ii) Matthias Schleiden and Theodor Schwann, who proposed the cell theory in 1839-1840.

(1bi) (i) Large, brightly colored petals that attract insects. (ii) Nectar-producing glands to feed the insects. (iii) A strong, sweet fragrance to attract the insects. (iv) A landing platform for the insects to rest on. (v) Pollen that is sticky and easily attaches to the insects.

(1bii) – Ginger: Rhizome – Banana: Rhizome – Sweet potato: Tuber

(1c) (i) The mouth mechanically breaks down the bread by chewing and mixes it with saliva, which contains enzymes that begin breaking down the carbohydrates in the bread. (ii) The esophagus moves the food down to the stomach, where it is mixed with stomach acid and enzymes that further break down the bread. (iii) The small intestine absorbs the nutrients from the bread, such as carbohydrates, proteins, and fats, into the bloodstream. (iv) The large intestine absorbs water and electrolytes from the remaining food waste, forming feces. (v) The rectum stores feces until they can be eliminated through the anus. •••••••••••••••••••••••••••••••••••••

(2ai) Amoeba —> Hydra —> Tilapia —> Toad —> Snake

(2aii) (i) Small, lightweight seeds that can be easily carried by the wind. (ii) Hairs or wings on the fruit that increase surface area and help to catch the wind. (iii) A dry, papery fruit that splits open easily to release the seeds.

(2b) =Aim:= To determine if the shoot of a plant is positively phototropic.

=Apparatus:= A potted plant, a light source, a ruler, a marker.

=Method/Procedure:= (i) Place the plant in a dark room for 24 hours to ensure that it is not positively or negatively phototropic. (ii) Place the light source at a fixed distance from the plant, with the light shining directly on the plant’s shoot. (iii) Turn on the light source and leave it on for 24 hours. (iv) After 24 hours, measure the distance between the tip of the shoot and the light source. (v) Mark the new position of the shoot tip on the ruler. (vi) Repeat the experiment two more times, moving the light source to a different position each time.

=Observation:= The shoot of the plant will grow towards them light source, bending in the direction of the light.

=Conclusion:= The shoot of a plant is positively phototropic and grows towards a light source.

=Aerobic Respiration= (i) Occurs in the presence of oxygen (ii) Produces a large amount of ATP (iii) Carbon dioxide and water are produced as waste products

=Anaerobic Respiration= (i) Occurs in the absence of oxygen (ii) Produces a small amount of ATP (iii) Lactic acid or ethanol is produced as a waste product

•••••••••••••••••••••••••••••••••••••

(3ai) – Rivers – Lakes

(3aii) TABULATE

=Complete Metamorphosis= (i) Four distinct stages: egg, larva, pupa, adult. (ii) Larva looks completely different from the adult.

=Incomplete Metamorphosis= (i) Three stages: egg, nymph, adult. (ii) Nymph looks similar to the adult, just smaller.

(3b) – Aim: To determine if chlorophyll is necessary for photosynthesis to take place.

– Apparatus: Two plants of the same species, one with leaves covered in aluminum foil, a light source, test tube, water, and a beaker.

– Observation: After a few hours, observe the test tubes to see which one has produced more oxygen bubbles.

– Conclusion: If the test tube with the leaf from the plant exposed to light produces more oxygen bubbles, then chlorophyll is necessary for photosynthesis to take place.

(3ci) (i) Overuse of synthetic fertilizers (ii) Overgrazing (iii) Deforestation (iv) Soil erosion

(3cii) (i) Hearing loss (ii) Sleep disturbance •••••••••••••••••••••••••••••••••••••

(4ai) (i) Crop diversity: Planting different crops in the same field over time to avoid the buildup of pests and diseases. (ii) Soil health: Planting crops that have different nutrient requirements to maintain soil fertility and prevent soil erosion. (iii) Pest management: Planting crops that are not susceptible to the same pests and diseases in succession.

(4aii) (i) Reduced leaves or spines to minimize water loss through transpiration. (ii) Thick cuticles and waxy coatings to reduce water loss through the epidermis. (iii) Deep roots to tap into underground water sources. (iv) CAM photosynthesis to reduce water loss during photosynthesis. (v) Ability to enter dormancy during drought periods.

(4bi) (i) Similarity in bone structure between birds and reptiles, especially in the skull and pelvis. (ii) Presence of scales on bird feet and legs, which are also found in reptiles. (iii) Similarity in egg-laying and incubation between birds and reptiles.

(4bii) (i) Detoxification of harmful substances in the blood. (ii) Production of bile to aid in digestion. (iii) Storage of glycogen, vitamins, and minerals. (iv) Regulation of blood glucose levels. (v) Production of blood clotting factors.

(4c) (i) Reforestation: Planting new trees in areas where forests have been cleared or degraded. (ii) Reduced impact logging: Using sustainable logging practices that minimize damage to the forest ecosystem. (iii) Protected areas: Establishing and maintaining protected areas for wildlife and biodiversity conservation. (iv) Community forestry: Encouraging local communities to manage forests sustainably for their own benefit and for the benefit of future generations.

(5a) DIAGRAM

(5bi) (i) Protection: the calyx protects the flower bud before it opens and the developing fruit after fertilization. (ii) Support: the sepals of the calyx can provide support for the petals and reproductive structures.

(5bii) (i) Insulin: regulates blood sugar levels. (ii) Estrogen: regulates female reproductive system and secondary sexual characteristics. (iii) Testosterone: regulates male reproductive system and secondary sexual characteristics. (iv) Adrenaline: prepares the body for “fight or flight” response to stress. (v) Melatonin: regulates sleep-wake cycles.

(5ci) (i) Gene therapy: correcting genetic disorders by introducing functional genes into the patient’s cells. (ii) Predictive medicine: using genetic testing to identify individuals who are at risk for certain diseases and develop personalized prevention or treatment plans.

(5cii) (i) Large surface area: to maximize light absorption. (ii) Thin and flat shape: to reduce the distance that light needs to penetrate into the leaf. (iii) Chlorophyll pigments: to absorb light energy and convert it into chemical energy.

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NECO Biology Questions And Answers 2023 | Essay And Objectives

This article reveals all you need to know NECO Biology Questions and Answers 2023 | Essay and Objectives. All NECO candidates for 2023 June/July SSCE should take every information contained in this post very serious.

I have specially prepared this article for the benefit of those who will be writing the 2023 June/July NECO examination. If you are sure that you would be sitting for this examination and biology is one of the subjects that you will be writing, pay close attention to all that you are going to see here.

There is good news for you!

Do wish to the complete NECO biology questions and answers before entering the examination venue/hall? If you have answered yes to this question, then you have to read this article to the end.

I have got EXPO for you on 2023 NECO Biology Questions and answers for Essay and Objectives. Do not leave this page if want to get detailed information about it.

Keep reading!

Download New NECO Timetable For Free Here

NECO Biology Answers 2023 (EXPO)

Neco biology questions and answers for 2023 (essay and objectives), neco biology objective question for 2023, neco biology objective answers for 2023, neco biology theory questions for 2023 (essay), neco biology theory answers for 2023, more neco biology objective questions, neco biology objective answers to practice questions, related links:, read instructions, read carefully, take note of compulsory questions, start with the simplest, 5. attempt all the question, 6. review your answers, top 5 reasons for poor performance in neco biology examination.

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11-20: DEECCBBBAB

21-30: EEADEAEAEA

31-40: BCCBCCBADE

41-50: DCCBCBECDC

51-60: EABBCCBADE

(i) Setting up of national park and gardens to save wildlife in their natural environment.

(ii) Poaching i.e. uncontrolled and illegal killing of game should be prevented.

(iii) Avoiding the use of pesticides that may kill off many animals

(vi) Prohibiting deforestation and encouraging afforestation

Sexual reproduction involves the fusion of two gametes – male and female gametes during fertilization to form a zygote which develops into a new organism. It involves organisms of the same species.

Sexual reproduction is the fusion or joining of male and female gametes or nuclei from different individual to form a zygote which later develops into an embryo or organism.

(i) biceps (flexor)

(ii) Triceps (extensor)

– When one touches a hot object, the sensory receptor in the skin receives the stimulus

– An impulse is transmitted from the receptor to the spinal cord, via the dorsal root/sensory neurone

– The intermediate neurone in the spinal cord passes on the impulse to the motor neurone

– The motor neurone then sends the impulses to an effector organ (muscle) via the ventral root

– All the neurones are linked by synapses across which impulses are sent

– The muscle upon receiving the impulse contracts causing the hand to be withdrawn from the hot object

(Pick Any Three)

(i) It provides water for photosynthesis

(ii) To get rid of excess water in the plant

(iii) It helps plants to continually draw water from the soil into their stem and leaves.

(iv) Some evaporation of water uses latent energy from plants and therefore keeps the plant cool

(v) It helps in the transport of mineral salts from soil to leaves and growing points of the plant

(i) Growing of cover crops like grasses, sweet potato which covers the surface of the soil

(ii) Contour ploughing: ploughing along the contours of a slope to reduce the speed of runoff water.

(NUMBER TWO)

Metamorphosis: This is the name given to the change in form shown by insects and amphibians from the egg stage to the adult stage.

(Pick Any Four)

(i) It regulate sex drive (libido)

(ii) It helps in the production of sperm

(iii) It helps in the production of red blood cells

(iv) It is responsible for muscle mass and strength

(v) Cause an increase in bone mass

(vi) Responsible for fat distribution

(i) It deaminates excess amino acid to urea

(ii) It stores iron from broken down cells

(iii) It detoxified poisonous substances and sent to the kidney for excretions

(iv) It supplies heat to the body by its metabolic reactions

(v) It also store fats and releases it at controlled rates into the blood when the need arises

(vi) It stores and releases minerals (iron, copper and potassium and vitamins (A, D and B12)

(i) Oxygen (only in the day)

(ii) Carbon dioxide (only at night)

(iii) Water

(iv) Tannins

(v) Alkaloids

(vi) Resins

(vii) Latex

– The semi-circular canals in the inner ear are responsible for the maintenance of balance with respect to circular motion.

– There are three semi-circular canals and each is found in one of the geometrical planes (right angle to each other)

– During spinning, the gelatinous cupula in one of the semi-circular canals is set in motion.

– This stimulates the sensory hairs, and impulses are sent through the auditory nerves to the brain for proper body posture.

– When one stops spinning, the gelatinous cupula does not stop moving instantly but continues to move for some time

– This cause the continue feeling of the sensation of spinning

(i)Buccal respiration

(ii)Lung respiration

(iii)Skin respiration

TABULATE PLEASE

=WIND POLLINATED FLOWERS=

(i) The flowers are not attractive

(ii) The pollen grains are not sticky

=INSECT POLLINATED FLOWERS=

(i) The flowers are attractive

(ii) The pollen grains are sticky

(i)Parietal placentation.

(ii) Basal placentation.

Light rays from an external object is refracted by the cornea, aqueous humour, the lens and the vitreous humour. The lens act as the fine adjustment bringing the rays to a focus on the retina. The image formed on the retina of human are inverted and diminished. The brain receives the stimulus via the optic nerves and then interprete it.

(i)Parasitic nutrition

(ii)Symbiosis

(iii)Carnivorous nutrition

(i) Internal fertilization

(ii) External fertilization

– After fertilization, the zygote divides repeatedly and develops into an embryo which consists of the plumule, radicle and one or two cotyledons.

– The primary endosperm nucleus develops into a nutritive tissue called endosperm, which stores food used by the developing embryo

– The synergids and the antipodal cells degenerate

– The ovule changes to form the seed and the interguments form the seed coat

– The micropyle remains where air and water enter the seed.

– The ovary develop into the fruit and the ovary wall forms the fruit wall called the pericarp.

– The style shrivels off, the petals, sepals and the stamens wither and fall off

(i) Red blood cells

(ii) White blood cells

(iii) Blood plasma

(iv) Platelets

(i)They are proteinous in nature

(ii) They speed up the rate of chemical reaction

(iii) They are organic catalyst

(iv) They are specific in function

Mendel’s first law also known as the law of segregation of genes states that during gamete formation, two alleles at a gene locus segregate from each other and each gamete has an equal probability of containing either allele

In this section, I will start by showing you all the questions that you should expect in your NECO biology objective questions for 2023.

Candidates should note that all the questions given in this section are predictions that are likely going to be true about NECO 2023.

Instructions

Each question is followed by FIVE options lettered A to E.

Find out the correct option for each question and shade in pencil in your answer sheet the answer space which bears the same letter as the option you have chosen.

Give only ONE answer to each question. An example is given below.

Which of these organisms is unicellular?

D. Paramecium

E. Spirogyra

The correct answer is ‘paramecium’ which is letter D, and therefore answer D would be shaded.

(A) (B) (C) ( D ) (E)

Erase completely any answer you wish to change.

Do all your rough work on this paper.

1. Which of these organisms exhibit both plant and animal features?

2. Water vapour in the mesophyll layer reaches the atmosphere via the

A. guard cells.

B. lenticels.

C. micropyle.

D. mid rib.

3. Plants with succulent stems and root systems are leaves, sunken stomata and deep

A. epiphytes.

B. hydrophytes.

C. mesophytes.

D. pteridophytes.

E. xerophytes.

4. Which of the following classes of food is stored in the body as energy reserve?

A. Carbohydrates

B. Fats and oil

C. Mineral salts

D. Proteins

E. Vitamins

5. Which of these fruits sticks to the body of animals during dispersal?

B. Caryopsis

E. Schizocarp

See also: NECO Government Questions and Answers for 2023

6. Which of the following groups of organisms causes blackpod disease?

A. Bacteria

B. Bryophytes

C. Protozoans

7. The mouth parts of mosquito are adapted for

A. piercing and chewing.

B. cutting and sucking

C. biting and filtering.

D. biting and licking.

E. piercing and sucking.

8. In housefly, the pair of stump-like wings beneath the first pair of wings is called

A. elytron.

B. halteres

D. squamosa

9. Which of these is NOT an excretory product?

10. The change in colour of a chameleon is an adaptation for

A. feeding.

C. movement.

D. protection.

E. reproduction.

11. A flower made up of one carpel is referred to as

A. apocarpous.

B. monocarpous.

C. monogamous.

D. pericarpous.

E. syncarpous.

12. Which of these soil types plays the most important role in determining the healthy growth of a vegetation?

A. Clay soil

B. Laterite

C. Loamy soil

E. Sandy soil

13. During the inspiration process of breathing in man, which of the following events takes place?

A. Diaphragm becomes dome-shaped.

B. Intercostal muscles relax.

C. rib cage is lowered.

D. Sternum moves forward.

E. Volume of the thorax decreases.

14. Lungs and gills are used for respiration in

C. insects.

15. An association between two organisms where both members benefit is known as

A. commensalism.

B. Cretinism

C. mutualism

D. parasitism

E. saprophytism.

16. The anaerobic process of respiration occurs in the

A. cytoplasm

B. endoplasmic reticulum.

C. mitochondrion.

E. ribosomes.

17. Excessive thyroxine secretion causes

A. hyperactivity.

B. hypoactivity.

C. isoactivity.

D. metamorphosis.

E. sensitivity.

18. The male and female gametes of a flower are

A. stigma and anthers.

B. style and stigma.

C. pollen grains and ovules.

D. Ovary and anthers.

E. anthers and filaments.

19. Which of the following is absent in the mammalian male organ?

A. Epididymis

B. Sperm duct

20. Which of these best defines an association in which the host is harmed?

A. Commensalism

B. Mutualism

C. Parasitism

D. Saprophytism

E. Symbiosis

21. Volvox exists as a/an

22. Meiotic cell division results in the

A. growth of the cell.

B. production of chromosomes.

C. production of gametes.

D. production of two daughter cells.

E. repair of tissues.

Use the above diagram to answer questions 23 and 24.

23. The fruit is formed from the part labelled?

24. What is the function of the part labelled I?

A. Develops into fruit

B. Grows into the pollen tube

C. Holds the flower

D. Produces the pollen grains

E. Receives pollen grains

25. The attachment of the embryo to the wall of the uterus is called

A. conception.

B. oogenesis.

C. fertilization.

D. implantation.

E. placentation.

Use the diagram above to answer questions 26 and 27.

26. In which of the labelled parts does a developing embryo obtain its food.

27. The part labelled II in the diagram is called.

A. albumen.

28. Which of the following animals exhibits territoriality?

29. The study of living organisms in relation to their environment is called

A. cytology.

B. ecology.

C. haemotology.

D. mycology.

E. paleontology.

30. Which of the following is the correct sequence of a food chain?

A. Grass →Grasshopper →Toad →Snake →Hawk.

B. Grasshopper →Toad →Hawk →Grass →Snake.

C. Snake →Grass →Hawk →Grasshopper →Toad.

D. Hawk →Grass →Snake →Grasshopper →Toad.

E. Grass →Grasshopper →Toad →Hawk →Snake.

31. Which of these is a pathogen?

A. HIV virus

C. Small pox

32. A bone with large centrum, neural canal and long spine can be found around the

33. Which of these food sources is rich in carbohydrates?

B. Groundnuts

34. Which of these is a morphological variation?

A. Blood groups

B. Colour blindness

D. Tasting PTC

E. Tongue rolling

35. The condition in which light rays from near objects are brought to focus behind the retina is

B. hypermetropia.

C. presbyopia.

D. astigmatism.

E. accommodation.

36. The two digestive enzymes that work in an acid medium are

A. amylase and pepsin.

B. lipase and renin.

C. maltase and erepsin.

D. pepsin and renin.

E. trypsin and lipase.

Study the diagram above and use it to answer questions 37 and 38.

37. In the diagram above, the part labelled II is called

A. contractile vacuole.

B. cytoplasm

C. eyespot.

D. photoreceptor.

E. flagellum.

38. The function of the part labelled III in the diagram is to

A. absorb water from the surrounding.

B. control the activities of the cell.

C. manufacture food.

D. move the organism.

E. store waste products.

39. The part of the nervous system which controls voluntary actions is the

A. cerebellum.

B. cerebrum.

C. medulla oblongata.

D. spinal cord.

E. thalamus.

40. Which of these insects undergoes incomplete metamorphosis?

B. Butterfly

C. Cockroach

D. Housefly

E. Mosquito

41. Which of the following blood groups is a universal recipient?

42. A little food substance in a test tube plus millon’s reagent when heated, tests for the presence of

A. Fats and oil.

B. Simple sugars.

D. Mineral salts.

E. Protein.

43. A child produced from the mating between mother and son (as in goats) is an example of

A. asexual reproduction.

B. cross-breeding.

C. in breeding.

D. out breeding.

E. self-fertilization.

44. The hereditary material controlling a particular trait in organisms is called

A. centrosome.

B. chromatid.

C. chromosome.

E. lysosome.

45. Which of these causes competition in a habitat?

A. Abundance of food.

B. Drought and adverse weather

C. High photosynthetic activities

D. Increase in population

E. Moderate rainfall and temperature

46. Which of these methods is a modern way of food preservations?

C. Refrigeration

47. The association existing between tapeworm and man is

A. holozoic.

B. parasitic.

C. predatory.

D. saprophytic.

E. symbiotic.

48. Sex-linked traits are

A. carried by genes on sex chromosomes.

B. carried by genes on autosomes.

C. most often x-linked.

D. mostly transferred from mother to offspring.

E. often recessive in nature.

49. Which of the following defines a climax community?

A. A stable stage in the succession of organisms

B. A series of changes in the population of organisms

C. Highest attainable stage in species composition

D. A community that changes only when a habitat factor changes

E. The composition and size are the same over a long period of time

50. If a young couple is found to be carriers of baldhead trait, what is the probability that their first child would be baldheaded?

Use the diagram below to answer questions 51 and 52.

51. Which of the following indicates the direction of movement of sperm introduced into the female reproductive organ.

A. II →I →IV →V

B. III →II →I →IV

C. VI →V →III →II

D. VI→IV →III →II

E. VI →IV →II →I

52. Where does fertilization take place?

53. Infertility in females may be as a result of

A. hairs on the body

B. lack of ovulation.

C. menstrual cycle.

D. narrow pelvis.

E. small breasts.

54. In which of the following parts of plants can auxins be found in highest concentration?

B. Lenticel

E. Shoot apex

55. Which of these animals possesses an exoskeleton?

A. Earthworm.

D. Starfish.

E Tapeworm.

56. The central nervous system is made up of which of the following pairs?

A. Brain and spinal cord.

B. Brain and nerves

C. Spinal cord and Sympathetic nervous system

D. Parasympathetic and sympathetic nervous systems.

E. Brain and Cerebrum

57. Which of the following is an autotrophic mode of nutrition?

A. Holozoic

B. Parasitic

C. Photosynthesis

D. Saprophytic

E. Symbiotic

58. For an organism to survive changes in its environment, it must

A. absorb more water.

B. adapt to the new conditions.

C. find shelter.

D. obtain more food.

E. obtain more light.

59. Which of these cell organelles is associated with energy generation?

A. Chloroplast

B. Endoplasmic reticulum

C. Golgi apparatus

D. Mitochondrion

E. Ribosome

60. In hypogeal germination, the

A. cotyledons are beneath the ground.

B. cotyledons are above the ground.

C. Epicotyl is beneath the ground.

D. Hypocotyl is above the ground.

E. Hypocotyl and cotyledons are above the ground.

The following are the answers to the objective question given in the previous section:

More of the answers to the objective question shall posted shortly. Keep checking this site for timely updates.

How to Answer NECO Biology Questions

This section the article is for everyone and especially for all those candidates who are desperate to knowing the right thing to do in order to achieve excellent performance in NECO Biology examination.

The following are the special tips on how to answer NECO biology questions:

Once you have settled to take your examination in the examination hall, the next thing that you must do first is to read through the instructions on top of the page before you can proceed with reading the questions.

Most times, some instructions are specific to some questions, maybe one or two questions. Here, you still have to take those instructions very serious.

Before you can proceed to answering NECO biology questions, it is highly recommended that you read carefully to understand any question before you can start to answer the questions.

It is possible to see questions that would be similar to what you have been seeing before, probably in past questions, but they are not the same.

This is the point where it is very necessary that you meticulously go through the question before you answer, to avoid choosing the wrong option for objectives and giving wrong explanations for theory questions.

In every NECO examination, there is/are usually some questions that are specially made compulsory by the Nation Examination Council. These questions are always seen in the paper 2 which is theory aspect of it.

You must ensure that you are able to answer those compulsory questions before you can think of answering any other ones. The compulsory questions do carry special mark.

Just like any other examinations, the complexity of every question in NECO government examination varies. After you have gone through the questions, you would be able to tell which of the questions are simple and the ones that are difficult.

The best approach in such case requires that you answer the questions from the simplest to the most complex ones. This is important because it will help to cushion you against examination tension.

Not only that, it also helps in the management of your time. If you are finding any question difficult to answer, you have to leave it and go to the next. Thereafter, you can re-visit those questions that you have left unanswered.

Though it is advisable that you start answering your question from the simplest, leaving the more difficult ones at the first attempts, it does not imply that you should submit you examination without answering those ones you skipped.

It quite understandable that you may not know all the asked questions, you are still required choose your answers even the ones that you do not really know very well.

Sometime, your guess can fall in place and become the right answer. So always ensure that you attempt all you question before you submit.

After you have attempted the entire given questions, you still have to go through all the answers to check for any errors and possible corrections.

By going through the questions, you would be able to see any skipped question(s), if any and the ones you mistakenly clicked the wrong options.

Get more tips: How to Pass your NECO Examination at One Sitting

It is an error to assume that NECO biology examination is hard. Failure to perform excellently in NECO biology examination is a question of whether the candidate knows the right things to do and if he/she is doing it right.

The poor performance that have been seen in some candidates’ results over the years are as a result of poor application of the basic principles for writing NECO biology examination and some other factors that I am going to show you here.

Inadequate Preparation

This is the most important aspect of the reasons for poor performance in NECO biology that should be considered.

It is obtainable in all areas that when there is poor preparation for any examination they will be poor result. As a good student, you are required to prepare for the NECO biology examination to the point that you would be sure of scoring high.

Reading without Past Questions

During the preparation phase of NECO biology examination and any other subjects, it is very pertinent that candidates make use of past question papers with reference to their answers.

Failure to make use past questions and answers is one the reasons why many candidates are left in abeyance immediately they enter the examination halls for the biology examinations.

Due to the ignorance of the nature of the examination, they will not even know to answer and most time it will result to examination tension and probably fever for the students.

Poor Time Management

Time management is another important factor that can lead to poor performance in every examination. You should learn how to manage your time especially when you are in the examination hall.

The practice of time management starts from the period of the candidate’s preparation for the examination. Once you can answer your past questions comfortably with the limited time that will be provided, you will still manage your time very well on the examination date.

Lack of Adherence to Given Instructions

There are some students who are fond of ignoring instructions when come for examination. Jumping into answering of questions without reading the given instructions is very wrong. This contributes in a big way to poor performance in the examination.

If you want to have good performance in NECO Biology, you have to strictly pay close attention to any given instructions.

Submitting Incomplete Answers

When a candidate submits the examination without attempting all the questions, it will automatically affect his/her score. It is important you answer all the questions before your submission.

I hope that you have enjoyed the information contained in this article. For more assistance on NECO Biology Questions and Answers for 2023/2024 (Essay and Objectives), kindly make use of the comment section below this article.

Do not forget to share this article with your friends.

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Neco Biology 2023 Question and Answers

Neco Biology 2023 Question and Answers : As the NECO (National Examinations Council) Biology examination for the year 2023 approaches, students across the country are preparing diligently for this crucial test. Biology is a fundamental subject that covers various aspects of life sciences, and a good performance in this exam can open doors to further studies and career opportunities. In this article, we will provide an overview of the NECO Biology 2023 examination, tips for preparation, and answers to common questions students may have regarding the exam.

Table of Contents

NECO Biology 2023 answers

(Biology – NECO 2023) Direct Mobile/SMS: N1000 MTN CARD Password/Link: N500 MTN CARD

Forward Subject Name, MTN CARD PINS, Phone number to: 09033919669 via TEXT MESSAGE(SMS) ONLY.

Understanding the NECO Biology Exam

Format and structure.

The NECO Biology examination consists of both theory and practical components. The theory paper usually contains a mix of multiple-choice questions (MCQs), short-answer questions, and essay-type questions. On the other hand, the practical section assesses students’ ability to carry out scientific experiments and analyze data accurately.

Marking Scheme

Each question in the NECO Biology exam carries specific marks, and the total marks for the exam may vary from year to year. It’s essential to pay attention to the marks allotted to each question and allocate your time accordingly during the exam.

How to Prepare for the NECO Biology Exam

Study plan and schedule.

Create a well-structured study plan that covers all the essential topics in the Biology syllabus. Allocate more time to challenging areas while leaving room for revision closer to the exam date. Stick to your schedule and be consistent in your study efforts.

Recommended Study Materials

Gather the necessary study materials, including textbooks, reference books, and online resources. Ensure that you have access to the official NECO Biology syllabus to guide your preparation effectively.

Practice with Past Questions

Solve past questions and sample papers from previous NECO Biology exams. This will familiarize you with the exam pattern, help you manage your time better, and identify areas where you need improvement.

Important Topics to Focus on

Cell biology.

Understand the structure and functions of cells, cell organelles, and the cell cycle. Topics like cell division, mitosis, and meiosis are often crucial areas in this section.

Genetics and Evolution

Learn about the principles of genetics, inheritance patterns, and genetic variation. Additionally, study evolutionary concepts and mechanisms that have shaped life on Earth.

Comprehend ecological interactions, ecosystems, and environmental issues. Awareness of ecological balance and conservation efforts is essential in this segment.

Human Physiology

Explore the functions of the human body’s systems and organs. Topics like digestion, respiration, circulation, and excretion are vital components of human physiology.

Tips for Answering Biology Questions Effectively

Read questions carefully.

Take your time to understand each question fully before attempting an answer. Pay attention to keywords and instructions provided in the question.

Manage Your Time Wisely

Divide your time appropriately between sections and questions. Avoid spending too much time on a single question and jeopardizing the completion of other questions.

Provide Clear and Concise Answers

Present your answers in a clear and organized manner. Use appropriate scientific terms and include relevant examples when necessary.

Common Mistakes to Avoid

Overlooking keywords.

Misinterpreting keywords in a question can lead to incorrect answers. Pay attention to words like “not,” “except,” and “always” to ensure accurate responses.

Neglecting Diagrams and Graphs

Some questions may include visual aids such as diagrams and graphs. Neglecting these visuals can result in incomplete or inaccurate answers.

Leaving Questions Unanswered

Avoid leaving any questions unanswered, as there are no penalties for incorrect answers. Make educated guesses if you are unsure about a particular question.

Test-Taking Strategies for Success

Start with easy questions.

Begin the exam by tackling the questions you find easiest. This will boost your confidence and save time for more challenging questions later.

Flag Difficult Questions for Review

If you encounter difficult questions, mark them for review and move on to other questions. Return to these flagged questions once you have completed the rest of the exam.

Review Your Answers if Time Permits

If you have time left after answering all the questions, use it to review your answers and make any necessary corrections.

The NECO Biology 2023 examination is an essential milestone for students pursuing careers in the sciences. With proper preparation, time management, and a thorough understanding of key concepts, students can excel in this exam and pave the way for their academic and professional aspirations.

The duration of the NECO Biology examination is typically within a few hours. The exact duration will be stated in the exam instructions.
No, the use of calculators is usually not allowed in the NECO Biology exam. Make sure to rely on your problem-solving skills and basic mathematical knowledge.
No, there are no negative marks for wrong answers in the NECO Biology exam. It is better to attempt all questions, even if you are unsure about the answer.
For the practical section, pay close attention to the instructions and follow the given procedures accurately. Organize your work neatly and record observations carefully.
The specific date for the release of NECO Biology 2023 exam results will be announced by the NECO board. Keep an eye on their official website for updates.

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NECO Biology 2023 Answers For 21st July 2023

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NECO Biology Past Questions and Answers | Theory and Objectives –Download PDF.

NECO Biology Past Questions and Answers | Theory and Objectives –Download PDF. The National Examination Council of Nigeria (NECO) Examination is around the corner. This article provides the readers with the information on how to download NECO Biology Past Questions and Answers. NECO Biology Questions are essential for you to know if you want to pass the NECO SSCE Biology Exams 2023.

The NECO Biology past questions and answers is a compiled material in PDF that contains past questions from NECO Biology Exams of previous years. The material comes with answers and is easily downloadable.

You can download the materials here. The instructions on how to download the NECO Biology can be found below. You are expected to follow the instructions in order for you to succeed. The material does not only contain information on NECO Biology Questions and answers but how to pass exams as well. You can see this article on the 21 indispensable steps to pass any exams with high grade .

NECO Commerce Past Questions and Answers | Theory and Objectives –Download PDF.
NECO English Past Questions and Answers –Download PDF.

Download also: WAEC past Questions and Answers .

NECO Biology Sample Questions and Answers

PAPER II [Essay] Answer any FOUR questions. Write your answers on the answer booklet provided.

1. (a) i. What is respiration? ii. In a tabular form, state four differences between gaseous exchange and aerobic respiration. (b) i. Explain the term residual air. ii. What is the importance of residual air to mammals? (c) State four characteristic features associated with respiratory structures. (d) i. What is oxygen debt? ii. Outline three activities that can result in oxygen debt.

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ANS: a) b) (i) During breathing out/expiration/exhalation; not all the air is removed from the lungs; the air left inside the lungs during breathing out is residual air. (ii) air is left in the lungs so that the lungs do not collapse; air is always left inside the lungs so that more oxygen can be removed (diffuse) into the blood stream. (c) (d) i. The build up of lactic acid; during strenuous exercise is poisonous and makes the muscles ache; oxygen is needed to break down/get rid of the lactic acid; that is why athletes continue breathing heavily even after the exercise is over; the oxygen needed to get rid of the lactic acid is known as oxygen debt. ii. Running; boxing; swimming /any correct example of strenuous activities.

2. (a) (i) What is sexual reproduction? (ii) Name four organs in mammals that produce sex hormones. (iii) Name one sex hormone produced by each of the organs named in 2(a)(i). (b) In a tabular form outline three differences between reproductions in lizards and birds. (c) (i) How are identical twins forms in humans? (ii) State three characteristics features of identical twins.

3. (a) Define the term osmosis. (b) State two ways each in which osmosis is of importance to: (i) plants; (ii) animals. (c) A normal terrestrial plant was watered daily with a hypertonic solution for about seven (7) days. It was discovered that the plant was not doing well. Explain why. (d) (i)Explain briefly how marine organisms overcome the problem of high salinity in their environment? (ii) List four examples of organisms found in the benthic zone of a marine habitat.

4. (a) (i) What is conservation? (ii) State six factors responsible for the decline of the abundance and variety of wildlife. (b) Outline six ways in which the government can improve the situation in 4(a) (ii) above. (c) (i) What is Eutrophication? (ii) State two causes of eutrophication.

5. (a) What is reproduction? (b) In a tabular form, state six differences between sexual reproduction and (c) asexual reproduction. (d) State three advantages sexual reproduction. (e) (i) Describe the female reproductive structure of a flowering plant. (ii) List two factors necessary for germination of seeds.

6. (a) (i) What is courtship behaviour? (ii) Outline five benefits derived by the exhibition of courtship behaviour. (b) Describe briefly courtship behavior in the Agama lizard. (c) Describe briefly the mammalian placenta.

7. (a) Explain briefly the role of the skin as a sensory organ. (b) Describe briefly the vegetation of Tropical Rain Forest. (c) List five animals that inhabit the Tropical Rain Forest.

How to Download NECO Biology past Questions and Answers

Here are the instructions to be followed in order to download the NECO Biology Questions and answers without any issue. Please follow our instructions and guide very well.

The cost of the newly updated NECO Past Questions and Answers is 2,000.00 naira only for One Subject e.g

Use of English 1000 naira
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To get NECO Past Questions and Answers follow the steps below.

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After Payment , send the following

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The purchased NECO Past Questions and Answer will be uploaded immediately into your email address within the next 24 hours.

If you have purchased yours, kindly drop a testimony in the comment box below.

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Download also: The complete NECO Past Questions and answers for all subjects.

Tips on How to Pass NECO Examination 2023

If you want to Past the NECO Examination this year, you will need to follow the instructions below.

Practice daily with NECO Past Questions and Answers
Write out your subjects, the dates and time.
Engage in general revision few days to the examination and dwell more on the subjects you find difficult.
Focus on only your first paper a week to the exam. This would make it sweet and you will have energy to read for other papers.
Don’t read any other subject when it is two days to a particular subject.
When you have two papers that are separated by only one day, read the second one first before going to the subject you have first.
Ensure to be in the NECO examination venue at least two hours to the examination so that you would be balanced.
Try to be up to date in cases of changes in the timetable.
Have a personal copy of the NECO timetable and syllabus.
Go through your timetable daily so that you don’t miss any paper.
Don’t go to the hall when you are not having paper that day.

Disclaimer: Please note these are not the actual questions and answers that you will find in the NECO Examination this year, but they are the likely questions. to get the actual NECO Past Questions and answers, please call 07063986527.

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Disclaimer: Please note that we are not in any way affiliated with any of the organizations or institutions here. All articles here are for the sole purpose of providing information. All Past questions are gotten from previous years’ examinations and likely questions from the Internet and related exams. We are not in any way promising that what you find in the past questions is what you will find in your examination. We are not in any way responsible for how the reader uses the information here. Please do consult an expert or professional in your field should the need arise. Copyrights Infringement: No article from this website should be copied without a proper reference and link to the page picked from. Anything otherwise will lead to legal action of copyright infringement. All articles on this website are products of painstaking research from our writers and journalist. Should you find any material bearing semblance here to any material on your page, please quickly notify us by sending a mail to [email protected] and we will immediately commence the process of taking it down.

NECO Mathematics Questions and Answers 2023-Essay and Theory | Free PDF

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Home » NECO » NECO Biology Answers 2023 (Obj-Essay) Questions is Out

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Neco biology answers 2023 (obj-essay) questions is out.

NECO Biology Questions & Answer 2023 Released.

The Neco biology 2023 answers are now available. The National Examination Council (NECO), Senior School Certificate Examination (SSCE) Biology paper will be written on Friday 21st July 2023.

The Neco biology exam will comprise Papers III & II: Objective & Essay which will commence at 10.00 am to end at 12.30 pm. That means the examination will last for two hours thirty minutes (2hrs 30mins) only.

In this post, we will be posting samples of the neco biology questions for candidates that will participate in the examination for practice purposes.

Note that below is the questions from Neco past questions and answers that we feel are likely questions for GCE preparation.

Neco Biology Essay Questions 2023.

Section II [Theory]: Answer any four questions from this section. Each question carries 10 marks. Write your answers in the answer booklet.

1. (a) (i) State two main functions of roots. (ii) Make a drawing 8-10cm long of the transverse section of the stem of a dicotyledonous plant and label fully. (b) In a tabular form, state three differences between the functions of vascular tissues of plants and the skeleton of mammals. (c) State: (i) two functions of xylem tissues; (ii) one function of phloem tissues. (d) What is meant by the term tropism?

2. (a) What is reproduction? (b) In a tabular form, state six differences between sexual reproduction and (c) asexual reproduction. (d) State three advantages of sexual reproduction. (e) (i) Describe the female reproductive structure of a flowering plant. (ii) List two factors necessary for the germination of seeds.

3. (a) (i) What is pollution? (ii) Name three water pollutants. (iii) State five harmful effects of sulfur dioxide in the atmosphere. (b) (i) Explain the term population. (ii) Explain how a pitfall trap is used to measure the population size of organisms in a habitat.

4. (a) In a garden, it was observed that the leaves of some vegetables were molting and had turned yellow, purple, and orange. There was stunted growth of mostly the lower leaves and the vegetables possessed a weak stem. List the elements likely to be deficient in the garden soil. (b) State three methods that can be adopted by a farmer to improve soil fertility for improved yield. (c) State four similarities and four differences between the alimentary canal of a bird and a cockroach. (d) List four disorders of the alimentary canal of humans.

5. (a) (i) Bacteria reproduce asexually by dividing in two. What term is used for this form of asexual reproduction? (ii) What do bacteria form when environmental conditions become unfavourable? (iii) What does the term pathogenic mean in relation to bacteria? (b) (i) Name an organ in the human body, other than the kidney, in which excretion takes place. (ii) In which part of the flower is pollen produced? (iii) In which part of a flower does a seed form? (c) Name another member of the kingdom to which Rhizopus belongs, other than yeast, and explain how it is of benefit to humans.

6. (a) (i) What is courtship behaviour? (ii) Outline five benefits derived from the exhibition of courtship behaviour. (b) Describe briefly courtship behavior in the Agama lizard. (c) Describe briefly the mammalian placenta.

7. (a) Explain briefly the role of the skin as a sensory organ. (b) Describe briefly the vegetation of Tropical Rain Forest. (c) List five animals that inhabit the Tropical Rain Forest.

Neco Biology Objective Questions.

Note: There is nothing like Neco Biology Expo online. Neco candidates are to desist from patronizing online fraudsters/vendors who say they can provide such services as they are not real.

Keep following this page and make sure you bookmark this site for reference purposes. If you have any questions, endeavour to use the comment box below…

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Absu 26th convocation ceremony details announced, other recommended posts for you, neco bece 2023 registration form & time table is now out, neco data processing answers 2023 practicals is out, neco animal husbandry answers 2023 [essay-obj-practical] is out, comments (7).

Please I need some answers for it please please

oo thank god this is just what i was looking for i dont’t need any answers

Does that mean that this is the questions that will come out

go and read ur books

pls I need answer for Neco biology exam we written d paper tomorrow plsss

please need some info

thanks for the information

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Free NECO Expo 2023 Questions and Answers for all Subjects

Post author: Study Admin
Post published: October 26, 2023
Post category: School News
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Free NECO expo 2023 questions and answers are now available. See the best NECO expo runs that will help boost your score and your overall performance in the 2023 NECO examination below.

We provide the correct questions and answers for all SSCE art, commercial, and science students. Read on to find out how to get the 2023 NECO expo questions and answers.

2023 NECO Expo Runs Questions And Answers

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Free NECO Expo 2023

Before you can seek admission into any tertiary institution in Nigeria, you need to have at least a credit in each of the subjects you are about write. And you stand a greater chance to gain admission to study your preferred course in any University or Polytechnic if you have an A’s or B’s.

So if your goal is to have a distinction in all subjects, we are here to help. See steps to get 2023 NECO questions and answers below.

NECO Expo/Runz 2023

The 2023 NECO timetable is out and the examination will soon commerce. All students are advised to take note of their dates and time for each of their subjects.

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NECO Expo Questions And Answers 2023

The NECO expo 2023 questions and answers for all subjects are provided here for free. All you have to do is to follow the instructions on how to get the 2023 NECO expo answers. Subjects in the Series include:

Accounting questions and answers
Agricultural Science questions and answers
Agric Practical questions and answers
Animal Husbandry questions and answers
Biology questions and answers
Biology Practical questions and answers
Book-keeping questions and answers
Chemistry questions and answers
Chemistry Practical questions and answers
Civic Education questions and answers
Commerce questions and answers
Computer Studies questions and answers
CRK/IRK questions and answers
Data Processing questions and answers
Economics questions and answers
English Language questions and answers
Food and Nutrition questions and answers
French questions and answers
Further Mathematics questions and answers
Geography questions and answers
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Health Education/ Health Science questions and answers
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Literature in English questions and answers
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NECO Biology (2023) Objective & Essays Answers

July 20, 2023 Classic Man NECO 1

Biology 2023

BIOLOGY OBJ

01-10: BBEDACCAEE 11-20: DDCEADBAED 21-30: EBBBEADBDD 31-40: EDACCCBCEA 41-50: EBBCACBAEC 51-60: DDABEDDDBE

COMPLETED ✅✅

2023 NECO THEORY ANSWERS

(1ai) The cell theory states that all living organisms are composed of cells, cells are the basic unit of life, and all cells come from pre-existing cells.

(1aii) (Pick any two)

i. Robert Hooke (1665) ii. Anton van Leeuwenhoek (1674) iii. Matthias Schleiden (1838) iv. Theodor Schwann (1839)

(1bi) Pick any five(5) i. Pollinated by insects ii. Usually have brightly colored petals iii. Have large amounts of nectar and pollen iv. Have a wide variety of shapes and sizes v. Have a shallow nectar cup vi. Have a strong scent to attract insects vii. Have a large number of stamens and pistils to ensure cross-pollination

(1bii) I. Ginger – Rhizomes II. Banana – Offsets/Suckers III. Sweet potato – Tubers

(1c) i. Mouth: The bread is chewed and mixed with saliva, which contains enzymes such as amylase that break down the carbohydrates in the bread into simpler sugars.

ii. Esophagus: The bread and saliva mixture is swallowed and passes down the esophagus to the stomach.

iii. Stomach: The stomach further breaks down the carbohydrates in the bread with acids and enzymes.

iv. Small Intestine: The broken-down carbohydrates are absorbed into the small intestine and converted into glucose and other simple sugars.

v. Large Intestine: The glucose and other simple sugars are absorbed into the large intestine, where they are further broken down by bacteria into fatty acids and other substances.

vi. Rectum: The fatty acids and other substances are absorbed into the rectum and passed out of the body as feces. ___________________ ____________________

(3ai) (PICK ANY TWO) I. Rivers II. Streams III. Ponds IV. Lakes V. Wetlands

(3aii) (Pick any Two)

TABULATE *Complete Metamorphosis:* i• Egg stage, Larva stage, Pupa stage, Adult stage ii• Development is gradual iii• Larvae and adults have different shapes and characteristics iv• Wings develop inside the pupal stage v• Development is slow

*Incomplete Metamorphosis:* i• Egg stage, Nymph stage, Adult stage ii• Development is abrupt iii• Nymphs and adults have similar shapes and characteristics iv• Wings develop outside the nymph stage v• Development is fast _____________________

NECO 2023 Biology Practical Answers

_____________________

3b (loading)…..

(3ci) Pick any four

i. Over-Fertilization: Excessive use of chemical fertilizers and pesticides can deplete the soil of essential nutrients and minerals, leading to poor soil fertility.

ii. Overgrazing: Overgrazing of livestock can cause soil erosion, compaction, and nutrient depletion.

iii. Deforestation: Removal of trees and other vegetation from the land can cause soil erosion and nutrient depletion.

iv. Monocropping: Growing the same crop in the same place year after year can lead to depletion of soil nutrients and increase the risk of pests and diseases.

v. Acid Rain: Acid rain can leach essential nutrients from the soil, leading to poor soil fertility.

(3cii) Pick any two i. Loss of Soil Fertility: Soil pollution can lead to loss of soil fertility due to the accumulation of toxic chemicals and other pollutants.

ii. Loss of Biodiversity: Soil pollution can lead to decreased biodiversity due to the destruction of habitats for organisms that rely on healthy soil.

iii. Contamination of Groundwater: Soil pollution can lead to contamination of groundwater due to the leaching of pollutants into the soil.

iv. Health Risks: Soil pollution can lead to health risks for humans and animals due to the presence of toxic chemicals in the soil.

v. Loss of Agricultural Productivity: Soil pollution can lead to decreased agricultural productivity due to the presence of pollutants in the soil.

===================================

(5a) DIAGRAM

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NECO Biology Questions and Answers 2021/2022 [Theory & OBJ Expo]

April 5, 2022

Updated NECO Biology Questions and Answers 2021: This is an online Solution to NECO Biology Questions 2021 and sample answers expos for Theory & OBJ papers.

This solution is made available so as to help NECO candidates looking for NECO Biology Questions and Answers 2021 expo solution for paper 1 and paper 2.

Download NECO 2021 Timetable PDF Here

I must also let you know that this NECO 2021 Biology Questions and Answers expo solution is free for all NECO candidates

NECO Biology OBJ & Theory Questions and Answers 2021

Have you ever wondered and thought of how you can possibly write this NECO Biology exam and come out with a very good grade?

If you say yes, then this is the very best NECO Biology Questions and Answers 2021 solution material that is highly recommendable to all NECO Candidates.

RECOMMENDED: Download NECO Timetable PDF

Please, I will advise candidates to take their time and follow this solution material step by step because it will really them to pass this NECO Biology exam right now.

NECO Biology Exam Guide: once you get to your exam venue, make sure you locate the exam Hall.

Once you get the exam paper, make sure you pray.

After praying to God, read through the exam instructions.

Now, make sure you fill in your candidate’s exam details which include exam Number, full name, Center number, etc.

NECO Biology OBJ Questions and Answers Expo 2021

Below are some sample NECO 2021 Biology questions and answers to start with. Note, they are just sample questions provided to give you insight on the kind of questions you should be expecting.

Take note of them, check their correct options, and keep them in memory in case you see any in the exam. We may post the real and correct answers for 2021 anytime. So keep checking this page.

1. Which of these is a mixed gland?

Correct Answer is Pancreas

2. ______ are Tissue which cells have lost the capacity of cell division?

Meristematic tissue
Permanent tissue
Both Mesristmatic and Permanent tissue
None of these

The Correct Answer is Permanent tissue

3. Why do wooden doors get difficult to open or close during Rainy Season? because of;

Plasmolysis

Correct Answer is Imbibition

4. Agrostology can be define as the study of__________?

Seed of oil

Correct Answer is Grass

5. How many pairs of Peripheral nerves are in man________?

Correct Answer is 43

6. What is found in eukaryotic cells that are not prokaryotic?

Correct Answer is A) Nucleus

7. The total salt content in the blood is around_____?

85 to 11.9%

Correct Answer is : D) 0.85 to 0.9%

8. Which of these hormones accelerate the rate of a heartbeat?

acetylcholine

Correct Answer is A) adrenaline

9. The human heart is also Known as….?

Neurogenic heart
Myogenic heart
Pulsating heart
Ampullary heart

Correct Answer is: B) Myogenic heart

10. The father of Zoology is__________?

Theophrastus

The Correct Answer is: B) Aristotle

11. Spermology is the study of_________?

The Correct Answer is: B) Seed

12. Which of this doesn’t have a red blood cell?

The Correct Answer is: B) Earthworm

13. Which of the following does Chambered heart occur in______?

Correct Answer is: D) Cockroach

14.The Amount of energy released by 1 gram of glucose is equal to to_____?

Correct Answer is: B) 4 kcal

15. Why is the corner of the cells of a collenchyma tissue in the plant thickened?

Because of the deposition of;

Lignin and suberin
Suberin and cutin
Cellulose and pectin
Chitin and lignin

Correct Answer is C) Cellulose and pectin

NECO Biology Theory Answers to Questions 2021

Below are awesome tips and instructions for the the NECO Biology theory questions and answers 2021.

Please kindly follow the instructions below to answer any NECO biology Theory question, then follow these steps:

Read and understand the instructions on the paper.
Make sure you read a question twice before answering.
Make sure you understand what the question is about before answering.
Let your answer be very short, simple and explanatory.

RECOMMENDED: GET MORE NECO UPDATES HERE

Download Free 2021 NECO Syllabus for all Subjects below. Select each and download NECO Biology Syllabus here

Please kindly use this NECO Biology Questions and answers 2021 as a hint and instruction to answering every other questions.

15 comments

Is it the true answer

I need the theory

Ok we will update the Theory soon

Pls is the questions right

I need NECO biology OBJ and theory

I need assistance for neco science subjects

I need theory and objectives

Is It The Real Question For 2021 Neco

Those are possible questions

I need the neco theory

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(1a) Specimen A: Land snail Specimen B: Toad Specimen C: Spider Specimen D: Crayfish

(1aii) (i) Shells are used as source of calcium for animal feeds. (ii) Its also serve as a source of animal protein for man.

(1aiii) TABULATE

=SPECIMEN A= (i)They have a soft, slimy body with a coiled shell on their back. (ii) They move by using a muscular foot that glides over a layer of slime they produce.

=SPECIMEN B= (i)They do not have a shell, but their skin is thick and covered in warts or bumps. (ii)They have muscular hind legs designed for hopping

(1aiv) (i) It allows researchers and ecologists to understand its role in the ecosystem (ii) It aids in conservation efforts and wildlife management.

(1av) (i) Webbed Feet (ii) Large Muscular Thighs

(1bi) (i) Specimen B (Toad): Amphibia (ii) Specimen C (Spider): Arachnida (iii) Specimen D (Crayfish): Malacostraca

(1bii) (i) Eight legs (ii) Multiple eyes

(1biii) [Diagram] https://i.imgur.com/BVmrFnQ.jpeg

(1biv) (i) Camouflaged exoskeleton (ii) Paddle-like appendages (iii) Sensory adaptations

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

(2ai) E: Spirogyra filaments. F: Mucor/Rhizopus. G: Groundnut seedling (A week old). H: Maize seedling (A week old). I: Microscope. J: Slide (plain).

(2aii) E habitat: Freshwater. F habitat: Damp and decaying organic matter.

(2aiii) E mode of nutrition: Autotrophic (photosynthesis). F mode of nutrition: Saprophytic (absorbing nutrients from dead organic matter).

(2iv) One reason for classifying E in (2aii) is its habitat in freshwater.

(2b) Mount E and F separately on J and use I to observe the setup.

(2bi) Observable features of E: 1. Green coloration. 2. Long, filamentous structure. 3. Presence of chloroplasts.

Observable features of F: 1. Fuzzy, cotton-like appearance. 2. Rapid growth and spreading. 3. Formation of sporangia.

The observed color of E is green, and its role in life is photosynthesis.

Colour: Green Role: Photosynthesis

(2ci) Class of G: Angiospermae (Dicotyledonae). Class of H: Angiospermae (Monocotyledonae).

(3ai) – Specimen K: Pigeon – Specimen L: Agama Lizard – Specimen M: Rat – Specimen N: Tilapia

(3aii) (i) Snout (ii) Eyes (iii) Ear (iv) Throat Fan (Dewlap)

(3bi) (i)Flight Adaptations: Pigeons have several adaptive features that allow them to excel in aerial life. (ii)Wings: Pigeons have strong and well-developed wings with feathers that provide lift and control during flight. (iii)Keen Vision: Pigeons have excellent eyesight, adapted for spotting distant objects and navigating over vast areas. (iv)Homing Instinct: Pigeons possess a remarkable homing ability, enabling them to navigate and find their way back to their nests or designated locations over long distances. (v)Crop Milk Production: Pigeons have a unique adaptation known as crop milk production.

(3bii) TABULATE

=SPECIMEN K= (i) Streamlined body shape (ii) Possession of feathers

=SPECIMEN L= (i) elongated body shape (ii) Possession of scales

(3ci) (i) Wings (ii) Beak/Mouth Structure:

(3cii) Diagram

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2023 NECO Biology Practical Questions

Question 1: Identify the specimen labeled as Specimen E. What is its common name?

Question 2: Observe Specimen F under a microscope. Identify the organism and state its classification.

Question 3: Examine Specimen H. Identify the plant species and describe its germination process.

Question 4: Examine Specimen I. Describe the main parts of a compound microscope and their functions.

Question 5: Identify the specimen labeled as Specimen L. What is its common name?

Question 6: Examine Specimen M. Identify the mammal species and describe its typical characteristics.

Question 7: Observe Specimen N. Identify the fish species and describe its habitat.

Question 8: Examine Specimen B. Identify the amphibian species and describe its unique adaptations.

Question 9: Examine Specimen G. Identify the plant species and describe its reproductive structure.

Question 10: Identify the specimen labeled as Specimen J. What is its purpose in microscopy?

NECO 2023 Biology Practical Answers

Answer: Spirogyra Filaments (commonly known as green algae)
Answer: Specimen F is mucor or Rhizopus, which belongs to the class Zygomycetes.
Answer: Specimen H is a maize seedling. The germination process involves the absorption of water, swelling of the seed, and emergence of the radicle (root) and plumule (shoot).
Answer: The main parts of a compound microscope are the eyepiece (ocular lens), objective lenses, stage, fine adjustment knob, coarse adjustment knob, and the light source. The eyepiece magnifies the image, the objective lenses provide different levels of magnification, the stage holds the specimen, the adjustment knobs focus the image, and the light source illuminates the specimen.
Answer: Agama Lizard (commonly known as rainbow lizard)
Answer: Specimen M is a rat. Rats are small mammals characterized by a pointed snout, long tail, sharp incisors, and a well-developed sense of smell.
Answer: Specimen N is a tilapia. Tilapia are freshwater fish that inhabit various water bodies such as lakes, rivers, and ponds.
Answer: Specimen B is a toad. Toads have adaptations like dry, warty skin, parotoid glands that secrete toxins for defense, and the ability to breathe through their skin.
Answer: Specimen G is a groundnut seeding. The reproductive structure of groundnuts includes yellow flowers that develop into pods containing the edible nuts.
Answer: Specimen J is a plain slide. It is used as a platform to hold the specimen being observed under a microscope.

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NECO Biology Questions and Answers For 2023/2024 (Theory and ...
NECO Biology Essay Answers: (1ai) The cell theory states that: - All living organisms are made up of one or more cells. - The cell is the basic unit of life. - All cells arise from pre-existing cells. (1aii) - Robert Hooke, who discovered cells in 1665 and coined the term "cell". - Matthias Schleiden and Theodor Schwann, who ...
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NECO BIOLOGY ESSAY SOLUTIONS NUMBER ONE a (i) the cell Theory state that all living things are made up of a cell which is the structural and functional unit of life. That new cells arise from pre-existing cells by cell division. Ii. Robert Hooke Matthias schleiden b (i) The flowers are large Possesses nectar The….
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The 2023 NECO biology questions are set from the SS1 to SS3 Biology syllabus. So all the questions you will encounter in this year's examination are in the syllabus, and nearly 95% of the questions are repeated. You don't have to worry about the 2023 NECO biology questions and answers PDF (essay and objective).
NECO Biology Questions and Answers 2023 (100% Sure) Theory & Obj
INSTRUCTION; ANSWER THREE (3) QUESTIONS ONLY. (1ai) The cell theory states that: (i) All living organisms are made up of one or more cells. (ii) The cell is the basic unit of life. (iii) All cells arise from pre-existing cells. (1aii) (i) Robert Hooke, who discovered cells in 1665 and coined the term "cell".
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The following are the questions that you should expect in you NECO Biology theory questions for 2023 June/July examinations: 1a (1) State TWO agents of seed dispersal and give: TWO examples of seeds and fruits dispersed by each. 6 marks. (ii) Name the TWO stages of photosynthesis. 2 marks.
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by Mr Noni. Neco Biology 2023 Question and Answers: As the NECO (National Examinations Council) Biology examination for the year 2023 approaches, students across the country are preparing diligently for this crucial test. Biology is a fundamental subject that covers various aspects of life sciences, and a good performance in this exam can open ...
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Neco Biology Essay Questions 2023. Answer any four questions from this section. Each question carries 10 marks. Write your answers in the answer booklet. 1. (a) (i) State two main functions of roots. (ii) Make a drawing 8-10cm long of the transverse section of the stem of a dicotyledonous plant and label fully.
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The cell theory states that all living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in living organisms. All cells arise from pre-existing cells through cell division. (v) The flowers are large and if the flowers are small they are in groups. The digestion of bread begins in the mouth ...
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NECO Biology Questions and Answers Essay and OBJ (Expo) The 2023 NECO Biology expo will be provided online today, July 21st, during the NECO Biology examination. Keep monitoring and refreshing this page for updates. NECO 2023 Biology Answers Loading… OBJ Answers: 1-10: BBEDACCAEE. 11-20: DDCEABDAEC. 21-30: EBBBEADBDD. 31-40: EDACCCBCEA. 41-50 ...
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Notice on 2023 NECO GCE Biology Daily Subscription. Candidates are advised to subscribe Two Days Or A Day before the scheduled examination date to avoid delay and receive the Password/Code Immediately to enable them to study the answers before the Exam Time.. All Payments should be done Via SMS/TEXT MESSAGE Only to Avoid Delay.We Reply SMS Faster Than WhatsApp Messages.
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The NECO 2023 exam happens over a span of 2 weeks covering a number of subjects. There are a number of subjects from which NECO Questions And Answers 2022 will be asked. These NECO subjects are based on which stream you choose. There are 3 major NECO streams - Science, Commerce, and Arts.
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How to Subscribe to NECO Biology Practical 2023. i. DIRECT SMS:- NECO 2023 Biology Practical answers will be sent directly to you via text message before your exam time. >> Send N800 MTN CARD to 09038588742 with the Subject's name, and phone number; I paid for the text message package. ii. WhatsApp Package:-You will get both NECO Biology Practical questions and answers directly to your ...
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NECO English Questions and Answers 2023 - FAQs. 1. What does "NECO" stand for in Nigerian English? In Nigerian English, "NECO" stands for the National Examinations Council of Nigeria, responsible for conducting national exams for secondary school students.

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