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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.

2,099 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

2,099 questions

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Question 241

waec 2016

The function of the villi in the alimentary canal is to

Asecrete gastric juice

BCurdle milk

Cemulsify fat

Dincrease the surface area for absorption

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Question 242

waec 2016

The association between two organisms in which one of the organisms gains and the other loses is referred to as

Asaprophytism

Bcommensalism

Cmutualism

Dparasitism

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Question 243

waec 2016

In which of the plant tissues are guard cells located?

AEpidemis

BMesophyII

CVascular bundles

DMeristems

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Question 244

waec 2016

The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question:

I. Decolorize them

II. Dip decolorized leaf in warm water

III. Place leaf in boiling water

IV. Add iodine solution

The best time to pluck the leaf for the experiment is?

Aafter being exposed to sunlight

Bthree hours after sunset

Cbefore sunrise

Dsix hours after sunset

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Question 245

waec 2016

The best time to pluck the leaf for the experiment is

Aafter being exposed to sunlight

Bthree hours after sunset

Cbefore sunrise

Dsix hours after sunset

View Explanation & Discuss

Question 246

waec 2016

The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question:

I. Decolorize them

II. Dip decolorized leaf in warm water

III. Place leaf in boiling water

IV. Add iodine solution

The CORRECT order for the test is?

AI, II, III and IV

BI, III, II and IV

CII, III,, I and IV

DIII, I, II and IV

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Question 247

waec 2016

Which of the following parts of the ear does NOT contain endolymph?

ASemi-circular canals

BUtriculus

CTympanum

DSacculus

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Question 248

waec 2016

Which of the following actions is NOT a voluntary action?

AStealing

BSneezing

CFighting

DCheating

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Question 249

waec 2016

Which of the following organs is responsible for the production of insulin?

ASpleen

BAdrenal gland

CThyroid gland

DPancreas

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Question 250

waec 2016

The maintenance of a constant internal environment in an organism is known as

Ahomeostasis

Bhomoiothermy

Cdiuresis

Ddialysis

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Question 251

waec 2016

The exchange of gases between the environment and the respiratory organs of vertebrates is referred to as

Ainhalation

Brespiration

Cexpiration

Dbreathing

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Question 252

waec 2016

The cells and tissues of the nose, throat, chest diaphragm and lungs from the

Acirculatory system

Brespiratory

Ctransport system

Ddigestive system

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Question 253

waec 2016

Lateral meristem in flowering plants is found in the

Acortex

Bpericycle

Ccambium

Dpith

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Question 254

waec 2016

Which of the following substances is not usually present in the urine of a healthy person?

AUrea

BMineral salts

CGlucose

DWater

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Question 255

waec 2016

Flaccidity in plants is associated with

Acessation of photosynthesis

Bwilting

Cturgidity

Ddiscolouration of leaves

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Question 256

waec 2015

Which of the following statements about protoplasm of a cell is not correct? It

Acomprises of the nucleus

Bconsists of the cytoplasm

Ccomprises of the cell organelles

Dconsists the nucleus only

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Question 257

waec 2015

The following organisms have structures for movement except

AAmoeba

BSpirogyra

CVolvox

DParamecium

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Question 258

waec 2015

The diagram above is illustration of a crocodile. Use it to answer this question.

Two characteristic features of the class to which the crocodile belongs are labelled

AI and II

BIII and IV

CII and IV

DII and V

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Question 259

waec 2015

The diagram above is illustration of a crocodile. Use it to answer this question.

Two characteristic features of the class to which the crocodile belongs are labelled

AI and II

BIII and IV

CII and IV

DII and V

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Question 260

waec 2015

The diagram above is illustration of a crocodile. Use it to answer this question.

Which of the labelled parts enable the animal to stay under water most of the time?

AI, IV and V

BI, II and V

CI, III and IV

DIII, IV and V

View Explanation & Discuss

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