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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.

50 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 11

waec 2024

Grasses → Grasshoppers → Lizards → Hawks

If the individual species of organisms in the food chain are counted and arranged as a pyramid, the result would be a pyramid of

Anumbers

Benergy

Cbiomass

Dbiomes

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Question 12

waec 2024

The illustration below is a food chain. Study it and answer questions 29 and 30.
Grasses → Grasshoppers → Lizards → Hawks

Which of the following statements is not correct about the food chain? The number of

Agrasses eaten by grasshoppers is greater than the number of grasshoppers.

Bgrasses eaten by grasshoppers is fewer than the number of grasshoppers.

Cgrasshoppers eaten by lizards is greater than the number
of lizards.

Dlizards eaten by hawks is greater than the number of hawks.

View Explanation & Discuss

Question 13

waec 2024

The pathway through which nutrient are replenished and circulated in an ecosystem is called a

Acycle

Bpyramid of energy

Cpyramid of numbers

DFood chain

View Explanation & Discuss

Question 14

waec 2024

Discouraging the use of poison to kill fish in a large water body is a way of

Aimpoverishing the people.

Bconserving the fish species.

Callowing the fittest organism to survive

Dmaking the fish adapt to their environment

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Question 15

waec 2024

Sunlight is the major source of

AVitamin D

Bvitamin C

Cvitamin B

Dvitamin A

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Question 16

waec 2024

Which of the following food substances would give a negative reaction with Benedict's reagent?

AFructose

BGlucose

CGalactose

DSucrose

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Question 17

waec 2024

The process of food digestion in mammals would

Amake energy immediately available to the body

Bpromote growth and repair of tissues

Cprovide sufficient food materials within the body

Drender food substances soluble and absorbable

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Question 18

waec 2024

The element required for chlorophyll formation in plants is

AIron

BCalcium

CPhosphorus

DSulphur

View Explanation & Discuss

Question 19

waec 2024

The rate of photosynthesis decreases in a wilted herbaceous plant because the

Aenzymes in the leaf were denatured

Bchlorophyll in the leaves was not broken down

Camount of light reaching the plant was reduced

Damount of carbon dioxide entering the leaf decrease.

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Question 20

waec 2024

Which of the following events does not occur in the light reaction stage of photosynthesis?

AChlorophyll absorbs sunlight

BCarbon (IV) oxide combines with hydrogen

CPhotolysis of water occurs

DHydroxyl ions are produced

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Question 21

waec 2024

The Parachute-like tuft of hairs developed from the

Apedicel

Bpetals

Creceptacle

Dsepals

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Question 22

waec 2024

The diagram above illustrates a dry dehiscent fruit. Use it to answer questions 19 and 20.

The agent of dispersal of the fruit is

Aanimal

Bexplosive mechanism

Cwater

Dwind

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Question 23

waec 2024

The condition necessary for reproduction to occur between plants P and Q after pollination is that plants P and Q should be

Aof the same species.

Bbrightly coloured.

Cwell scented

Dof different species.

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Question 24

waec 2024

The diagram above is an illustration of two plants P and Q. Arrows I, II and III illustrate the transfer of pollen grains among flowers of plants P and Q. Studly it and answer questions 17 and 18.

The types of pollination illustrated as I,Il and III, respectively are

Across, self and cross

Bself, self and cross

Cself, cross and self

Dself, cross and cross

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Question 25

waec 2024

The part labelled III is the

Airis.

Bpupil

Csclera

Dcornea

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Question 26

waec 2024

The diagram above is an illustration of sense organ in humans. Study it and answer questions 15 and 16.

The part that protects the organ is labelled

BII

CIII

DIV

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Question 27

waec 2024

The structures that contain grey matter and white matter are found in the

Areproductive system.

Bnervous system.

Crespiratory system.

Ddigestive system.

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Question 28

waec 2024

Filtrates in the Bowman's capsule contain vitamins because

Athey have low molecular weight.

Bmost of them are fat soluble.

Cthey cannot be reabsorbed into the blood.

Dlittle amount is required by the blood.

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Question 29

waec 2024

Which of the following blood vessels carries oxygenated blood into the heart?

APulmonary artery

BAnterior vena cava

CPulmonary vein

DPosterior vena cava

View Explanation & Discuss

Question 30

waec 2024

The lumbar vertebra differs from the thoracic vertebra because it possesses a

Alonger neural spine.

Bwider neural canal.

Cthicker centrum.

Dshorter transverse process.

View Explanation & Discuss

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