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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.

118 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

118 questions

Question 1 of 20 118 total questions

Question 41

jamb 1989

Which of the following is a dangerous product of coal burning?

ASulphur dioxide

BCarbon dioxide

CCarbon

DNitrogen

View Explanation & Discuss

Question 42

jamb 1989

which of the following disease can be caused by a bacterium?

ARingworm

BPoliomyelitis

CMalaria

DSyphilis

View Explanation & Discuss

Question 43

jamb 1989

which of the ways of controlling bilharzia can result in pollution?

Aclearing water weeds on which the snail feed

BTreating infected people with drugs

CPreventing contamination of water by infected urine and faeces

DApplying chemical to kill the snails

View Explanation & Discuss

Question 44

jamb 1989

A physiological adaptation of plants to the problem of excessive water loss is

Areduction in the number of stomata

Breversal of the normal stomatal rhythm

Cpossession of shallow roots

Dpossession of waxy cuticles

View Explanation & Discuss

Question 45

jamb 1989

Lichen is an example of

Asaprophytic organism

Ba symbiotic association

Can epiphytic plant

Da carnivorous plant

View Explanation & Discuss

Question 46

jamb 1989

In an ecosystem, the LEAST efficient energy transfer link is from

Aproducers to primary consumers

Bsun to producers

Cprimary consumers to secondary consumers

Dsecondary consumers to decomposers

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Question 47

jamb 1989

Which of the following is a sex-linked character?

ASickle-cell anaemia

BTongue rollling

CSkin colour

DColour blindness

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Question 48

jamb 1989

If parents with blood groups AB and O produce six children

Athree of them will have group B

Btwo of them will have group A

Call the offspring will have group O

Dnone of them will have group A

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Question 49

jamb 1989

when the two alleles present in an organism are of the same type, the genotype is described as

Aheterozygous

Bheterogamous

Chomozygous

Dhomologous

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Question 50

jamb 1989

During cell division, the two strands of chromosomes are joined at a point called

Aspindle

Bchromatid

Ccentromere

Daster

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Question 51

jamb 1989

The region that control most of the unconscious processes of a mammalian body is the

Acerebellum

Bcerebrum

Cspinal cord

Dmedulla oblongata

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Question 52

jamb 1989

A fundamental similarity between nervous and hormonal system is that both

Ainvolve chemical transmission

Bhave widespread effects

Cshed chemicals into the blood stream

Devoke rapid responses

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Question 53

jamb 1989

Fruit enlargement can be induced by spraying young ovary with

Acytokinin, abscisic acid and ethylene

Bgibberellin, ethylene and abscisic acid

Cauxin, abscisic acid and ethylene

Dauxin, cytokinin and gibberellin

View Explanation & Discuss

Question 54

jamb 1989

The irreversible life process by which new protoplasm is added to increase the size and weight of an organism can be termed

Aanabolism

Bcatabolism

Cgrowth

Ddevelopment

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Question 55

jamb 1989

Exponential increase in the population of an organism is a characteristic feature off

Abinary fission

Bsexual reproduction

Cbudding

Dvegetative propagation

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Question 56

jamb 1989

A corn differs from a bulb in that

Aits stem is the main food storage organ

Bit has a flattened discshaped stem

Cbuds are absent in the axils of the leaves

Dadventitious roots are present

View Explanation & Discuss

Question 57

jamb 1989

The components of castor oil seed and the maize grain are similar EXCEPT for the

Anumber of cotyledons

Blocation of the embryo

Cnumber of radicles

Dnumber of plumules

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Question 58

jamb 1989

Wind pollinated flowers usually have

Arough pollen grains

Bsticky stigmas

Csmall and short stigmas

Dlong styles

View Explanation & Discuss

Question 59

jamb 1989

The lumbar vertebra when compared with a thoracic vertebra has a

Alonger neural spines

Bwider neural canal

Cthicker centrum

Dshorter transverse process

View Explanation & Discuss

Question 60

jamb 1989

Which of the following is the function of lymph?

ACarries hormones round the body

BTransports nutrients and oxygen from blood capil

CDistributes heat uniformly round the body

Dconveys amino acids and glucose fromthe small intestine to the liver

View Explanation & Discuss

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