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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.

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Past Questions

50 questions

Question 1 of 20 50 total questions

Question 11

jamb 2002

Which of the following statement is correct about the experiment?

AThe flask must be of the conical type

BCaustic soda can be replaced with distilled water

CThe enclosed leaf will lose its green colour

DThe leaves outside the flask serve as control

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Question 12

jamb 2002

The capture and digestion of insects by a pitcher plant is a special form of nutrition termed

Aautotrophic

Bheterotrophic

Cchemosynthetic

Dsaprophytic

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Question 13

jamb 2002

The presence of endoskeleton is characteristic of

Ainvertebrata

Bvertebrata

Cinsecta

Dcoelenterata

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Question 14

jamb 2002

The mammalian erythrocytes differ from the leucocytes at maturity because the erythrocytes are

Adiscoid and nucleated

Bdiscoid and enucleated

Camoeboid and nucleated

Damoeboid and enucleated

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Question 15

jamb 2002

Examples of organisms in which extracellular digestion occurs are?

Afungus, loranthus and housefly

Brhizopus, sponges and earthworm

Croundworm, tapeworm and hydra

Drhizopus, housefly and hydra

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Question 16

jamb 2002

Animals aestivate when the environment in which they live becomes

Ahot and dry

Bcold and wet

Cwarm and humid

Dwindy and snowy

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Question 17

jamb 2002

The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles and which is an evidence of their common ancestry is the

Aeye

Bchorion

Callantois

Dgill-silts

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Question 18

jamb 2002

A feature of the caste system of bees and termites ia that

Athe workers are sterile

Bthe kings are bigger than the queens

Conly the worker perform duties

Dnuptial flight is performed by all members

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Question 19

jamb 2002

Birds which are large with long straight pointed beaks, long necks and long legs are likely to be

Ainsect eaters

Bfish catchers

Cnectar feeders

Dfruit eaters

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Question 20

jamb 2002

The carnassial teeth of a carnivorous animal consist of the

Alast upper premolar and the first lower molar

Blast upper molar and the last lower molar

Cfirst upper premolar and the lower molar

Dfirst upper molar and the first lower molar

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Question 21

jamb 2002

In his theory of evolution, Darwin implied that

Athe struggle for existence among living organisms is sporadic

Bthe most successful organisms are those that best adapt to their environment

Corgans of the body which are not regularly used by an organism will disappear

Dany traits acquired by an organism during its lifetime can be passed on its offspring

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Question 22

jamb 2002

In a population study using the transect method, a student is likely to record the highest number of species in?

Aa tropical rain forest

Ba guinea savanna

Ca sahel savanna

Dan estuarine swamp

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Question 23

jamb 2002

The excessive use of agro-chemicals could lead to the pollution of

Athe lithosphere

Bthe atmosphere

Cfresh water

Dspace

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Question 24

jamb 2002

The addition of lime to clayed soil serves to

Aaid water retention

Bclose up the texture

Cprevent water logging

Dimprove capillary action

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Question 25

jamb 2002

The supporting tissue in xylem is most poorly developed in

Amangrove swamp plants

Bgrassland plants

Csubmerged water plants

Ddesert plants

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Question 26

jamb 2002

In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m\(^2\) quadrat. What is the density of the plants in the field?

A1.2 per m²

B2.4 per m²

C4.8 per m²

D9.6 per m²

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Question 27

jamb 2002

A step in the movement of energy through an ecosystem is a description that best fits the term

Afood chain

Btrophic level

Cpyramid of numbers

Dfood web

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Question 28

jamb 2002

The physical and climatic factors of a region primarily determine the

Akinds of animal inhabiting the area

Btypes of plants found in the area

Cnature of the soil in that region

Dcommunity of organisms in the region

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Question 29

jamb 2002

Plants tend to prevent overcrowding by means of efficient

Awater uptake

Bseed germination

Cpollination

Dseed dispersal

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Question 30

jamb 2002

The most common means of transmiting the Acquired Immune Deficiency Syndrome (AIDS) is

Afrom mother to child

Bthrough blood transfusion

Cthrough sexual intercourse

Dthrough the sharing of needles

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