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Civil and Mechanical

J Biology 24

Written by Admin September 6, 2025October 24, 2025

Biology Jamb 2024

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Question 1 of 40

1. Question

Which of the following conditions causes aestivation in animals?

Wind
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Drought
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Rain
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Cold
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Question 2 of 40

2. Question

If the F1 generation allows for self-pollination, what will be the genotypic ratio of the

1 : 2 : 1
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2 : 2
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3 : 1
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2 : 1 : 1
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Question 3 of 40

3. Question

An example of organism that exhibits counter-shading to escape from its predator is

grasshopper
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toad
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fish
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chameleon
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Question 4 of 40

4. Question

Which of the following processes takes place in the carbon cycle?

evaporation
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nitrification
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combustion
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transpiration
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Question 5 of 40

5. Question

The process by which plants loss water to the atmosphere is

transpiration
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guttation
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translocation
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evaporation
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Question 6 of 40

6. Question

The part of the flower that develops into seed is

ovule
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pedicel
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petal
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style
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Question 7 of 40

7. Question

A form of adaptive colouration that helps animals to remain unnoticed is

hibernation
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aestivation
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countershading
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migration
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Question 8 of 40

8. Question

The cone in the retina of eye is an example of

cell
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tissue
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organ
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system
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Question 9 of 40

9. Question

Which of the following structures enables the exchange of gases in insects?

skin
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tracheae
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Malpighian tubules
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flame cell
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Question 10 of 40

10. Question

A community with a population of two million three hundred and ten thousand people

10000
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10
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100
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1000
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Question 11 of 40

11. Question

How many chromosomes will be present in a gamete if the somatic cell has 8

16
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6
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4
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8
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Question 12 of 40

12. Question

A trait that is always expressed during crossing of hereditary characteristics is

recessive trait
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dominant trait
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homozygous trait
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heterozygous trait
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Question 13 of 40

13. Question

The major building block of an organism is...

Nitrogen
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Carbon
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Water
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Sulphur
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Question 14 of 40

14. Question

Loamy soil is characterized by

low humus and high porosity
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high humus and high porosity
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moderate humus and low porosity
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high humus and moderate porosity
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Question 15 of 40

15. Question

The web-feet of frogs and toads is basically for

leaping
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walking
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swimming
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mating
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Question 16 of 40

16. Question

Which of the following characteristics is possessed by both living and non-living things?

Both age and die
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Both have life
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Both have weight
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Both have no shape
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Question 17 of 40

17. Question

i
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ii
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iii
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iv
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Question 18 of 40

18. Question

i
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ii
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iii
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iv
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Question 19 of 40

19. Question

A medium texture soil with high organic matter is

clay
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loamy
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humus
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sandy
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Question 20 of 40

20. Question

In a cross involving a heterozygous red flower plant (Rr) and a white flowered plant (rr).

½
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1
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2
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¼
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Question 21 of 40

21. Question

One of the components of xylem tissue is

companion cell
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tracheid
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sieve tube
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epidermal
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Question 22 of 40

22. Question

The pigment carrying oxygen in the blood is

plasma
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haemoglobin
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oxyhaemoglobin
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erythrocytes
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Question 23 of 40

23. Question

Which of the following processes releases oxygen to the atmosphere?

Respiration
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Combustion
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Decomposition
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photosynthesis
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Incorrect
Question 24 of 40

24. Question

The component that serves as major buffer in blood is

plasma
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erythrocytes
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leucocytes
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lymph
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Question 25 of 40

25. Question

Which of the Nigeria states is Northern guinea savanna located?

Borno
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Kano
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Oyo
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Kwara
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Question 26 of 40

26. Question

The bacteria in the large intestine of man synthesizes

vitamins and minerals
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vitamins and glucose
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amino acids and vitamins
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amino acids and minerals
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Question 27 of 40

27. Question

Which of the following plants shows hypogeal germination?

castor oil
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groundnut
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maize
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orange
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Question 28 of 40

28. Question

oviduct
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placenta
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amnion
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uterus
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Question 29 of 40

29. Question

The chemical and physical composition of soil is an example of

climatic factor
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topographic factor
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Edaphic factor
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chemical factor
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Question 30 of 40

30. Question

A photosynthetic carnivorous plant which feeds on insects is

parasitic
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saprophytic
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herbivorous
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insectivorous
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Question 31 of 40

31. Question

In which zone of the marine habitat does the organisms require adaptation for

Supratidal
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Subtidal
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intertidal
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abyssal zone
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Question 32 of 40

32. Question

Iron is an essential nutrient in plants because it

aids in the formation of chlorophyll and proteins
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helps in cell division
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protects the plants from pest attack
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fastens fruits maturation
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Question 33 of 40

33. Question

circulatory system?
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reproductive system
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urinary system
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nervous system
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Question 34 of 40

34. Question

Xerophytes are mostly found in the

arid land
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tropical rainforest
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montane forest
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Sudan savanna
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Question 35 of 40

35. Question

Blood group AB is considered as universal recipient because they can receive blood

A and O
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B and O
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AB and O
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A, B, AB and O
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Question 36 of 40

36. Question

Similar structures that are modified to work in different ways in different organisms are referred to as

homologous structures
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analogous structures
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divergent structures
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convergent structures
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Question 37 of 40

37. Question

thyroid
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adrenal
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parathyroid
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pituitary
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Question 38 of 40

38. Question

One of the following is a courtship behaviour in animals

fighting
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display
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hibernation
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feeding
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Correct

Incorrect
Question 39 of 40

39. Question

production of heat
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osmoregulation
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vasoconstriction
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production of hormones
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Incorrect
Question 40 of 40

40. Question

A discontinuous morphological variation often used in crime detection is the

skin colour
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blood group
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finger prints
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eye colour
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Correct

Incorrect

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