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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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2,099 questions

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Question 101

waec 2021

A woman with Rhesus negative blood group was advised not to marry a man with Rhesus positive blood group because

Ait will hinder her from having blood transfusion from her husband

Bit will result in sickness and probably death of the offspring

Cher children may all resemble her husband

Dit may affect her childbearing ability

View Explanation & Discuss

Question 102

waec 2021

In humans, pointed eyebrows (B) is a dominant trait over smooth eyebrows (b). A student and the mother have smooth eyebrows while the father has pointed eyebrows. What is the genotype of the father?

ABB

BBb

Cbb

DBBbb

View Explanation & Discuss

Question 103

waec 2021

Which of the following statements about sickle cell anaemia is correct?

Ait is caused by sex-linked genes

Bit is more common in males than in females

Ctwo sickle cell carrier parents may have a sickling child

Dit is caused by recessive genes

View Explanation & Discuss

Question 104

waec 2021

Plants suitable for experiments in genetics must not

Aproduce numerous seeds within a short time

Bhave a small number of chromosomes

Chave a relatively short life cycle

Dproduce one generation in a large period

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Question 105

waec 2021

A mixture of blood with antigen A and blood containing antibody a will?

Alead to agglutination

Bfacilitate dissolution of clot

Chave no effect on blood composition

Dchange the blood group

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Question 106

waec 2021

Which of the following statements about mitosis is not correct?

Achiasmata are not formed

BBi-valents are not formed

CIt does not lead to variation

DFour daughter cells are produced

View Explanation & Discuss

Question 107

waec 2021

The diagrams above are illustrations of types of comb found in domestic fowl. Study them and answer this question.

Which factor is most likely responsible for the various types of comb?

Aenvironment

Bgenetics

Cphysiology

Dmorphology

View Explanation & Discuss

Question 108

waec 2021

The diagrams above are illustrations of types of comb found in domestic fowl. Study them and answer this question.

The types of comb show ?

Avariation

Binheritance

Ccell theory

Dcourtship behaviour

View Explanation & Discuss

Question 109

waec 2021

Which of the following resources cannot be conserved?

Aforest

Bwater

Csoil

Dgarbage

View Explanation & Discuss

Question 110

waec 2021

Which of the following practices is a wildlife conservation method?

Ause of cover crops

Bcrop rotation

Cmulching

Ddiscouraging poaching

View Explanation & Discuss

Question 111

waec 2021

Endangered species are organisms that are?

Alikely to migrate to other favourable lands

Blikely to disappear from the surface of the earth

Creproducing profusely in an area

Ddangerous to humans and attacking other animals

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Question 112

waec 2021

Which of the following behaviours is correctly matched with the corresponding diseases?

ASmoking cigarette / Liver cirrhosis. Lung cancer, AIDS

BHaving multiple sexual partners / liver cirrhosis, syphilis, AIDS.

CLiving near dirty gutter / Lung cancer, syphilis, river blindness.

DEating uncooked meatf/fdysentery, cholera. food poisoning.

View Explanation & Discuss

Question 113

waec 2021

When a large number of organisms share limited resources, the result is?

Amutualism

Bextinction

Ccommensalism

Dcompetition

View Explanation & Discuss

Question 114

waec 2021

An association between living organisms in which one organism lives on and feeds at the expense of the other organism is known as?

Amutualism

Bcommensalism

Cparasitism

Dpredation

View Explanation & Discuss

Question 115

waec 2021

Which of the following features is a characteristic of aquatic plants possession of ?

Amultiple epidermis

Bheavily lignified tissue

Cfinely divided leaves

Dsucculent stem

View Explanation & Discuss

Question 116

waec 2021

The illustration below is a food chain.

Grass→grasshopper→domestic fowl→hawk

What would happen if the population of domestic fowl decreases?

Agrasshoppers would decrease

Bhawks would increase

Cgrasshoppers would increase

Dgrasses available to grasshoppers

View Explanation & Discuss

Question 117

waec 2021

Rabbits cannot survive in an aquatic habitat because they have

Ano scales

Bno gills

Cfore limbs

Dlateral line

View Explanation & Discuss

Question 118

waec 2021

Plants and animals of an ecosystem make up a?

Ahabitat

Bsuccession

Ccommunity

Dpopulation

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Question 119

waec 2021

The following organisms are examples of carnivorous plants except.

Agloriosa

Bvenus flytrap

Cpitcher plant

DUtricularia

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Question 120

waec 2021

The diagram above is an illustration of the foot of an animal.

The adaptation of this type of foot is that it is?

Aused as a bait to catch fish in water

Bused as a paddle for swimming

Ceffective in scratching the soil for food

Dused for killing prey in water

View Explanation & Discuss

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