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Biology Past Questions

Study and practice Biology past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

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5,032 questions

Question 1 of 20 5,032 total questions

Question 901

waec 2010

The mechanism of opening and closing of stomata in plants is based on

Aturgidity and diffusion

Bturgidity and flaccidity

Cosmosis and diffusion

Ddiffusion and flaccidity

View Explanation & Discuss

Question 902

waec 2010

Which of the following processes involves diffusion?

AOpening and closing of stomatal pores

BTurgidity of herbaceous plants

CAbsorption of water through the root hairs

DAbsorption of digested food into the villi

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Question 903

waec 2010

Which of the following characteristics do fungi share in common with animals?

APresence of digestive tract

BMovement from one place to another

CStorage of carbohydrates as glycogen

DMovement of centrioles during cell division

View Explanation & Discuss

Question 904

waec 2010

A typical plant cell is mainly distinguished from an animal cell by the possession of

Achloroplast and nucleus

Bcell wall and cytoplasm

Cchloroplast and cell wall

Dcell wall and mitochondrion

View Explanation & Discuss

Question 905

waec 2010

Which of the following cell types has the least number of mitochondria?

ACardiac cells of the heart

BCells of the cornified layer

CMuscle cells of the bladder

DMuscle cells of the diaphragm

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Question 906

waec 2010

The organelle which eliminates water from the body of a protozoan is the

Aplasma membrane

Bcontractile vacuole

Cnucleus

Dcell wall

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Question 907

waec 2010

An organism that operates at the cellular level of organization, carries out its physiological activities by
using its

Acell membrane

Borganelles

Csmall size

Dcytoplasm

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Question 908

waec 2010

Which if the following organisms is not classified as an animal?

AAmoeba

BParamecium

CEuglena

DObelia

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Question 909

jamb 2010

In the diagram, which of the animals represents the oldest creatures in terms of evolutionary history?

Aiii

Bii

Div

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Question 910

jamb 2010

Use the diagram above to answer this question.With respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented?

Al,IV,II and lll

BIV, lll, ll and l

Cl, ll, IV and lll

Dlll, ll, IV and l

View Explanation & Discuss

Question 911

jamb 2010

Use the diagram above to answer this question based on the shape and structure of the beak and feet, the bird represented is likely to feed mainly on?

Aflesh

Bfruits

Cseeds

Dnectar

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Question 912

jamb 2010

Use the diagram above to answer this question.The main function of the feathers covering the part labeled I is to?

Aprevent ectoparasites from attacking the animal

Bgenerate heat to keep the animal warm

Cprovide some power for flight

Dserve as insulator to maintain body heat

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Question 913

jamb 2010

Use the diagram above to answer this question.During photosynthesis, the arrow labeled ll represents the?

Aescape of mineral salts

Babsorption of energy from the sun

Crelease of carbon (IV) oxide

Drelease of oxygen as a by-product

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Question 914

jamb 2010

Use the diagram above to answer this question.The movement of material in the xylem and phloem tissues of the plant are represented by the arrows labeled?

AlV and III respectively

Bll and l respectively

Cl and ll respectively

Dl and lll respectively

View Explanation & Discuss

Question 915

jamb 2010

Use the diagram above to answer this question.Which of the following is a true feature of plantation ll?

Ait has the highest number of trees of about 2m high.

Bit has highest number of trees

Cit has the highest number of tall trees

Dthe height of all its trees range between 2m and 6m

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Question 916

jamb 2010

Use the diagram above to answer this question.In which plantation are all the trees between the height of 2-4m?

Alll

Bll

DlV

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Question 917

jamb 2010

If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is?

A\(\frac{1}{2}\)

B\(\frac{3}{4}\)

C\(\frac{1}{4}\)

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Question 918

jamb 2010

The flippers of a whale and the fins of a fish are examples of?

Adivergent evolution

Bcoevolution

Ccontinous variation

Dconvergent evolution

View Explanation & Discuss

Question 919

jamb 2010

The main distinguishing features between the soldier termite and other members of the caste are the?

Apresence of wings, possession of a small head and large thorax

Bpresence of wings, possession of a large thorax and a small head

Cabsence of wings, possession of strong mandibles and a large head

Dabsence of wings,possession of big head and the absence of mandible

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Question 920

jamb 2010

At what stage in the life history of a mammal is the sex of an individual set?

Aat adolescence

Bat puberty

Cat birth

Dat conception

View Explanation & Discuss

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