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Civil and Mechanical

w Biology 22

Written by Admin December 9, 2025December 9, 2025

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Question 1 of 46

1. Question

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question. The part labelled IV is

silt
Correct Incorrect Correct answer

sand
Correct Incorrect Correct answer

humus
Correct Incorrect Correct answer

clay
Correct Incorrect Correct answer

Correct

Incorrect
Question 2 of 46

2. Question

Which of the following statements best describes a test cross?

to determine the genotype of an individual whose phenotype is to be known
Correct Incorrect Correct answer

to determine the phenotype of an individual whose genotype is known
Correct Incorrect Correct answer

between the progeny of parents to ascertain external expressions
Correct Incorrect Correct answer

between two homozygous recessive individuals to confirm the genotypes
Correct Incorrect Correct answer

Correct

Incorrect
Question 3 of 46

3. Question

Use the following processes to answer this question. I-Ribs move upward and outward II- Diaphragm relaxes IIl-Volume of thorax increases IV-Air is forced out of the lungs which of the following processes is a direct result of contraction of the intercostal muscles?

I
Correct Incorrect Correct answer

II
Correct Incorrect Correct answer

III
Correct Incorrect Correct answer

IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 4 of 46

4. Question

The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?

osmosis
Correct Incorrect Correct answer

autolysis
Correct Incorrect Correct answer

plasmolysis
Correct Incorrect Correct answer

diffusion
Correct Incorrect Correct answer

Correct

Incorrect
Question 5 of 46

5. Question

The table above shows the effect of hormones I,II,III and IV on some parts of the human body. Where (?) represents effects and (X) represents no effect of hormone on the corresponding part of the body. study it and answer this question. Which of the following hormones are l, II, Ill and IV respectively?

ADH, Glucagon, Oestrogen, Adrenaline
Correct Incorrect Correct answer

Adrenaline, Glucagon, Oestrogen, ADH
Correct Incorrect Correct answer

Glucagon,ADH, Oestrogen, Adrenaline
Correct Incorrect Correct answer

Adrenaline, ADH, Oestrogen, Glucagon
Correct Incorrect Correct answer

Correct

Incorrect
Question 6 of 46

6. Question

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question. Protease J would react with the particular illustrated substance because enzymes?

are denatured at a high frequency
Correct Incorrect Correct answer

are specific in their action
Correct Incorrect Correct answer

remain unchanged after a reaction
Correct Incorrect Correct answer

speed
Correct Incorrect Correct answer

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Question 7 of 46

7. Question

The major source of vitamin A are ?

egg yolk, carrot and palm oil
Correct Incorrect Correct answer

mango, pawpaw,and eggs
Correct Incorrect Correct answer

sorghum,soya bean and liver
Correct Incorrect Correct answer

rice,bran,green vegetables and milk
Correct Incorrect Correct answer

Correct

Incorrect
Question 8 of 46

8. Question

An accident victim was successfully transfused with blood from the father whose blood group is

B
Correct Incorrect Correct answer

O
Correct Incorrect Correct answer

AB
Correct Incorrect Correct answer

A
Correct Incorrect Correct answer

Correct

Incorrect
Question 9 of 46

9. Question

A group of organisms of the same species living in a particular place is known as

colony
Correct Incorrect Correct answer

ecosystem
Correct Incorrect Correct answer

Niche
Correct Incorrect Correct answer

population
Correct Incorrect Correct answer

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Question 10 of 46

10. Question

The use of a lighter instead of matchsticks is a way of conserving

petroleum
Correct Incorrect Correct answer

forest
Correct Incorrect Correct answer

water
Correct Incorrect Correct answer

wildlife
Correct Incorrect Correct answer

Correct

Incorrect
Question 11 of 46

11. Question

The process by which the amount of water and solutes in the blood is controlled is known as

hemolysis
Correct Incorrect Correct answer

diffusion
Correct Incorrect Correct answer

turgidity
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osmoregulation
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Correct

Incorrect
Question 12 of 46

12. Question

The organelles in cells which are also referred to as suicidal bags are the

mithchondria
Correct Incorrect Correct answer

lysosomes
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ribosomes
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nuclei
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Question 13 of 46

13. Question

which of the following statements about living things is correct?

animals respire using carbon(iv)oxide as a raw material
Correct Incorrect Correct answer

growth in plants is limited after some time
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most plants respond to stimulus slowly
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higher animals can reproduce asexually
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Question 14 of 46

14. Question

Study the food chain illustrated below and use it to answer this question. J-K-L-M-N Organism J is normally sustained by energy from?

Green plants
Correct Incorrect Correct answer

carbohydrates
Correct Incorrect Correct answer

organism
Correct Incorrect Correct answer

sunlight
Correct Incorrect Correct answer

Correct

Incorrect
Question 15 of 46

15. Question

which of the follwing pyramids is not used in ecology? pyramid of

energy
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numbers
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biomass
Correct Incorrect Correct answer

orgsnisms
Correct Incorrect Correct answer

Correct

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Question 16 of 46

16. Question

Diagrams X and Y above are illustrations of transverse sections of a part of plants. study them and answer this question which of the following statements is not correct? Diagrams X and Y are sections of

roots
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a dicotyledonous root
Correct Incorrect Correct answer

vascular bundies
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stems
Correct Incorrect Correct answer

Correct

Incorrect
Question 17 of 46

17. Question

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question. Which of the following statements about P and Q is correct?

Both cells are structures for asexual reproduction
Correct Incorrect Correct answer

Both cells normally belong to the same individual
Correct Incorrect Correct answer

Both cells are found in plants
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The union of both cells gives rise to a new mammal
Correct Incorrect Correct answer

Correct

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Question 18 of 46

18. Question

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question. Protease J would react with the particular illustrated substance because enzymes?

K
Correct Incorrect Correct answer

I
Correct Incorrect Correct answer

M
Correct Incorrect Correct answer

N
Correct Incorrect Correct answer

Correct

Incorrect
Question 19 of 46

19. Question

In which of the following structures is simple sugar produced?

Vacuole
Correct Incorrect Correct answer

Cytoplasm
Correct Incorrect Correct answer

chloroplast
Correct Incorrect Correct answer

Cell wall
Correct Incorrect Correct answer

Correct

Incorrect
Question 20 of 46

20. Question

Diagrams X and Y above are illustrations of transverse sections of a part of plants, Study them and answer this question. The part labelled Il is the?

Pith
Correct Incorrect Correct answer

xylem
Correct Incorrect Correct answer

Phloem
Correct Incorrect Correct answer

endodermis
Correct Incorrect Correct answer

Correct

Incorrect
Question 21 of 46

21. Question

Which of the following blood components has the greatest affinity for oxygen and carbon (IV) oxide?

Lymphocyte
Correct Incorrect Correct answer

Thrombocyte
Correct Incorrect Correct answer

Erythrocyte
Correct Incorrect Correct answer

Blood plasma
Correct Incorrect Correct answer

Correct

Incorrect
Question 22 of 46

22. Question

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question. If the number of chromosomes in the skin cells of mammals is 46, how many chromosomes would be found in P and Q respectively?

23 and 23
Correct Incorrect Correct answer

23 and 46
Correct Incorrect Correct answer

46 and 23
Correct Incorrect Correct answer

46 and 46.
Correct Incorrect Correct answer

Correct

Incorrect
Question 23 of 46

23. Question

Diagram J is a protease while diagrams K,L,M, and N are food substances, study them and answer this question. After a reaction between protease J and the food substance, the end product would be

fatty acids
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glucose
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amino acids
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water
Correct Incorrect Correct answer

Correct

Incorrect
Question 24 of 46

24. Question

Which of the followig traits in humans is an example of physiological variation?

skin colour
Correct Incorrect Correct answer

fingerprint
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toungue rolling
Correct Incorrect Correct answer

height
Correct Incorrect Correct answer

Correct

Incorrect
Question 25 of 46

25. Question

An evidence of the occurrence of photosynthesis in an experiment is the?

release of carbon (IV) oxide
Correct Incorrect Correct answer

release of oxygen
Correct Incorrect Correct answer

formation of water molecules
Correct Incorrect Correct answer

formation and release of fructose
Correct Incorrect Correct answer

Correct

Incorrect
Question 26 of 46

26. Question

Use the following processes to answer this question. I-Ribs move upward and outward II- Diaphragm relaxes IIl-Volume of thorax increases IV-Air is forced out of the lungs Which of the processes take place during inspiration?

I and III only
Correct Incorrect Correct answer

II and III only
Correct Incorrect Correct answer

IV and III only
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III and IV only
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Correct

Incorrect
Question 27 of 46

27. Question

Study the food chain illustrated below and use it to answer this question. J-K-L-M-N which of the following statements about organism L is correct?

feeds on organism
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is a primary consumer
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is the producer
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is a secondary consumer
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Incorrect
Question 28 of 46

28. Question

Which of the following statements about sex linked traits is not correct?

male inherit sex linked traits from thier fathers
Correct Incorrect Correct answer

sex linked traits are more common in males
Correct Incorrect Correct answer

females can be carriers beacuse they can be heterozygous for the trait
Correct Incorrect Correct answer

males are never carriers since they only recieve one sex chromosome
Correct Incorrect Correct answer

Correct

Incorrect
Question 29 of 46

29. Question

The property of clayey soil that prevents it from supporting thick vegetation is its?

composition of chemically weathered granite rocks
Correct Incorrect Correct answer

inability to retain much water
Correct Incorrect Correct answer

tendency of becoming waterlogged
Correct Incorrect Correct answer

porosity and low water retention ability
Correct Incorrect Correct answer

Correct

Incorrect
Question 30 of 46

30. Question

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question. The parts labelled I are the?

semi circular canals
Correct Incorrect Correct answer

ossicles
Correct Incorrect Correct answer

cochlea
Correct Incorrect Correct answer

external auditory meatus
Correct Incorrect Correct answer

Correct

Incorrect
Question 31 of 46

31. Question

The burning of farmlands ahould be discouraged because?

destroys organic components of the soil
Correct Incorrect Correct answer

increases population of wild animals
Correct Incorrect Correct answer

increases dormancy period of some seeds
Correct Incorrect Correct answer

destroys some plant seeds
Correct Incorrect Correct answer

Correct

Incorrect
Question 32 of 46

32. Question

The diagrams above are illustrations of two different cells involved in biological processing in mammals. Study them and answer this question. Which parts of P and Q fuse to complete the biological process?

III and I
Correct Incorrect Correct answer

IV and I
Correct Incorrect Correct answer

III and II
Correct Incorrect Correct answer

IV and II
Correct Incorrect Correct answer

Correct

Incorrect
Question 33 of 46

33. Question

Diagrams X and Y above are illustrations of transverse sections of a part of plants, Study them and answer this question. The part responsible for conducting water and dissolved mineral salts from the soil to the leaves is labelled

I
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II
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III
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IV
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Correct

Incorrect
Question 34 of 46

34. Question

which of the following features is not an adaptation?

Breathing roots for entry air
Correct Incorrect Correct answer

flowers are raised above water to attract pollinators
Correct Incorrect Correct answer

spongy tissues containing gases for boyancy
Correct Incorrect Correct answer

hairy structures on the leaves to reduce water loss
Correct Incorrect Correct answer

Correct

Incorrect
Question 35 of 46

35. Question

The conservation of natural resources is enhanced by the following practices except

controlling farm activities
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protecting endangered species
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poaching in game reserves
Correct Incorrect Correct answer

establishing parks and gardens
Correct Incorrect Correct answer

Correct

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Question 36 of 46

36. Question

which of the following practices will not maintain soil fertility?

preventing soil erosion
Correct Incorrect Correct answer

bush fallowing
Correct Incorrect Correct answer

tendency of becoming waterlogged
Correct Incorrect Correct answer

porosity and low water retention ability
Correct Incorrect Correct answer

Correct

Incorrect
Question 37 of 46

37. Question

The diagram below is an illustration of an experiment on sedimentation of soil, use it to answer this question. The organic component of the soil is labelled

I
Correct Incorrect Correct answer

II
Correct Incorrect Correct answer

III
Correct Incorrect Correct answer

IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 38 of 46

38. Question

Individuals belonging to the blood group O are universal donors because ?

antigens are absent in thier blood cells
Correct Incorrect Correct answer

members of the group consitutute the highest number of humans
Correct Incorrect Correct answer

there are no of antibodies in thier blood plasma
Correct Incorrect Correct answer

the antigens in thier blood cells are easily destroyed
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Correct

Incorrect
Question 39 of 46

39. Question

The total number of caudal vertebrae in animals X and Y is 4 and 27 respectively. The animals are likely to be.

fish and human
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toad and rat
Correct Incorrect Correct answer

toad and fish
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humans and rat
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Correct

Incorrect
Question 40 of 46

40. Question

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question. Which of the parts are correctly grouped?

(Inner ear I, IV) (Middle ear III) (Outer ear II)
Correct Incorrect Correct answer

(Inner ear III) (Middle ear II, IV) (Outer ear I)
Correct Incorrect Correct answer

(Inner ear III) (Middle ear II) (Outer ear III,IV)
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(Inner ear II) (Middle ear I, III) (Outer ear IV)
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Correct

Incorrect
Question 41 of 46

41. Question

The diagram above is an illustration of some parts of a mammalian ear. Study it and answer this question. The middle ear is connected to the pharynx by the part labelled

I
Correct Incorrect Correct answer

II
Correct Incorrect Correct answer

III
Correct Incorrect Correct answer

IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 42 of 46

42. Question

Study the food chain illustrated below and use it to answer this question. J-K-L-M-N The position occupied by each of organisms J K L M N in the food chain is known as the

energy level
Correct Incorrect Correct answer

trophic level
Correct Incorrect Correct answer

food web
Correct Incorrect Correct answer

pyramid of numbers
Correct Incorrect Correct answer

Correct

Incorrect
Question 43 of 46

43. Question

The table above shows the effect of hormones I,II,III and IV on some parts of the human body. Where (✓) represents effects and (X) represents no effect of hormone on the corresponding part of the body. study it and answer this question. The hormone responsible for anxiety is?

I
Correct Incorrect Correct answer

II
Correct Incorrect Correct answer

III
Correct Incorrect Correct answer

IV
Correct Incorrect Correct answer

Correct

Incorrect
Question 44 of 46

44. Question

The region of a plant stem in which cells divide to increase its diameter is

cambium
Correct Incorrect Correct answer

phloem
Correct Incorrect Correct answer

xylem
Correct Incorrect Correct answer

collenchyma
Correct Incorrect Correct answer

Correct

Incorrect
Question 45 of 46

45. Question

Organ level of organization in living things is found in?

waterleaf plant
Correct Incorrect Correct answer

virus particle
Correct Incorrect Correct answer

kidney
Correct Incorrect Correct answer

spermatozoon
Correct Incorrect Correct answer

Correct

Incorrect
Question 46 of 46

46. Question

The biological association that contributes directly to succession in a community is

competition
Correct Incorrect Correct answer

predation
Correct Incorrect Correct answer

parasitism
Correct Incorrect Correct answer

commensialism
Correct Incorrect Correct answer

Correct

Incorrect

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