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Biology Past Questions

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50 questions

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Question 21

jamb 1982

A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation?

AThe woman is incapable of producing male children

BThe man’s sperms are very weak

CThe man is not athletic enough

DThe Y component of the men’s sex chromosomes was always involved

EThe X component of the man’s sex chromosomes was always involved

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Question 22

jamb 1982

If a tall man (TT) marries a dwarf woman (gg) and they have four male children, the offspring will be?

AAll short

BThree short and one tall

CTwo short and two tall

DOne short and three tall

EAll tall

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Question 23

jamb 1982

Which of these food chains is NOT possible in a forest?

ADiatom → fly → toad → snake

BFly → toad → snake→ hawk

CLeaves → antelope → man → lion

DLeaves → caterpillar → bird → lion

ELeaves →goat → man→ lion

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Question 24

jamb 1982

An homoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ?

ARadiation

BSweat

CEvaporation

DConduction

EConvection

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Question 25

jamb 1982

Kwashiorkor is caused by severe deficiency of

AWater

BOil

CDrugs

DProteins

ESugars

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Question 26

jamb 1982

In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called

ASexual reproduction

BCohesion

CPregnancy

DImplantation

EViviparity

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Question 27

jamb 1982

Some of the major elements required by plants are

APotassium, nitrogen, phosphorus, sodium, calcium

BNitrogen, phosphorus, molybdenum, sodium, calcium

CPotassium, phosphorus, molybdenum, sodium, calcium

DPotassium, nitrogen, iron , sodium, calcium

EPotassium, nitrogen, phosphorus, silicon, cadmium

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Question 28

jamb 1982

Which of these animals is NOT metamerically segmented?

ATapeworm

BEarthworm

CCentipede

DCrayfish

EShark

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Question 29

jamb 1982

Which of these combinations is common to plant and animal cells?

ACentriole, middle lamella, golgi bodies, mitrochondrion

BCytoplasm, sap, vacuole, starch grains, leucoplasts

CPlasma membranes, chromosomes, mitochondria, lysosomes.

DNucleus, nucleolus, cellulose cell wall, endoplasmic reticulum

ECytoplasm, centriole, cellulose cell wall, nucleolus

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Question 30

jamb 1982

A population is defined as the collection of

ASimilar organism that are found in the same habitat

BSimilar organisms that breed in the same habitat

CSimilar organisms that interbreed freely in the same habitat

DSimilar organism eating the same food

EDifferent organisms in the same habitat

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