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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.

49 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

49 questions

Question 1 of 20 49 total questions

Question 1

jamb 1997

Water loss is regulated in plants and animals by both the

Ascales and the skin

Bscales and the hair

Cthick leaves and the feathers

Dleathery cuticle and the feathers

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Question 2

jamb 1997

Long neck in giraffe is used to illustrate the theory of

Ause and disuse

Borigin of species

Corigin of life

Dnatural selection

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Question 3

jamb 1997

Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because

Athe deposits have remains of organisms characteristic of when they were formed

Bdifferent strata have remains of organisms of the same kind

Conly organisms with strong parts are fossilized

Dmost animal and plant fossils bear little resemblance to present day living specimens

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Question 4

jamb 1997

What combination of character should a prey develop to survive the environment of its predator?

ACamouflag, well developed limbs and effective vision

BShowy colour, big body and well developed limbs

CCamouflage, big body and effective vision

DShowy colour, well developed muscles and an acute sense of smell

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Question 5

jamb 1997

Which of the following characters is NOT sex-linked?

AAlbinism

BBaldness

CHaemophilia

DColour blindness

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Question 6

jamb 1997

The homozygous condition HbsHbsresults in sickle cell anaemia whereas HbAHbs has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?

A1/2

B1/4

C1/8

Dnone

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Question 7

jamb 1997

One reason for the success of Mendel's work is that he

Awas the first to carry out research work on modern genetics

Bintroduced quantitative and qualitative elements into his work

Cselected two characteristics only at a time for study

Ddrew up his laws of inheritance based on his knowledge of chromosomes

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Question 8

jamb 1997

During binary fission in lower organisms, the nucleus is known to undergo

Amitosis

Bmeiosis

Cfragmentation

Dmutation

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Question 9

jamb 1997

One of the most effective ways of controlling guinea worm is by

Atreating the disease

Bpublic enlightenment campaigns

Caccelerating rural developmnet

Dprovision of portable drinking water

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Question 10

jamb 1997

Which is the most important pollutant of the marine environment in Nigeria?

AInsecticides

BSewage

COil

DInorganic fertilizers

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Question 11

jamb 1997

In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of

Afiltration

Bcentrifugation

Cprecipitation

Dsedimentation

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Question 12

jamb 1997

After a heavy rainfall and the formation of a large pond, the most likely sequence of changes in the vegetation of the pond is

AEuglena → water lily → Spirogyra → grass

Bwater lily → Spirogyra →grass → Euglena

CSpirogyra → Euglena → grass → water lily

DEuglena → Spirogyra → water lily → grass

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Question 13

jamb 1997

The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has

Alower rainfall and shorter grasses

Bless grasses and scattered trees

Cmore rainfall and taller grasses

Dless arboreal and burrowing animals

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Question 14

jamb 1997

Adaptive features of plants to desert conditions include?

Athick barks, succulent stems and sunken stomata

Bthin barks, succulent stems and sunken stomata

Cthin barks, air floats on stems and sunken stomata

Dair spaces in tissues, adventitious roots and thick barks

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Question 15

jamb 1997

Toads and lizards in an ecosystem depend on a limited quantity of food. This is an example of

Aparasitism

Bintraspecific competition

Cpredation

Dinterspecific competition

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Question 16

jamb 1997

Which organism in the food-web illustrated above is an omnivore?

AWeevils

BRat

CHawk

DPrayer mantis

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Question 17

jamb 1997

The speed of wind can be measured with an instrument called

Ahygrometer

Bsecchi disc

Canemometer

Dwind vane

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Question 18

jamb 1997

The ability of the eye to focus on both near and distant objects is termed

Aimage formation

Brefraction

Chypermetropia

DAccomodation

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Question 19

jamb 1997

The part of the brain that regulates most biological cycles in humans is

Aolfactory lobe

Boptic lobe

Cmedulla oblongata

Dpineal body

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Question 20

jamb 1997

The substance that is responsible for optical dominance in plants is known as

Agibberellin

Btannin

Cauxin

Dkinin

View Explanation & Discuss

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