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Biology Past Questions

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2,572 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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2,572 questions

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Question 1061

jamb 1987

In a plant exhibiting alternation of generations, the diploid multicellular stage is known as

Agametophyte

Bspermatophyte

Cholophyte

Dsporophyte

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Question 1062

jamb 1987

An organism found on a bare rock surface has features of algae and fungi. The organism is

Aan epiphyte

Ba lichen

Ca bryophyte

Da fern

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Question 1063

jamb 1987

Which of the following features of euglena is found only in animals?

AParamylum granules

BFlagellum

CPellicle

DPyrenoid

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Question 1064

jamb 1987

The functions of endoplasmic reticulum is

Aprotein synthesis

Bintracellular transport of materials

Cdigestion and destruction of foreign bodies

Dproduction of energy from glucose

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Question 1065

jamb 1986

The main function of the structure labelled 2 is to

Aprotect the inner parts of the seed

Bnourish the embryo and the growing plant

Ckeep the inner parts moist

Dmaintain the shape if the seed

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Question 1066

jamb 1986

The structure labelled 1 is the

Aplumule

Bradicle

Ccell membrane

Dseed coat

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Question 1067

jamb 1986

Which of the labelled parts will develop into a new maize plant?

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Question 1068

jamb 1986

Sample of different soil types are packed in glass tubes whose lower ends are plugged with cotton wool, if these tubes are suspended in a trough of water, water will rise highest after a few hours in

Asand

Bloamy

Cclay

Dhumus

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Question 1069

jamb 1986

The following are methods of soil conservation EXCEPT

Acontour terracing

Bstrip cropping

Ccontour ploughing

Dmixed grazing

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Question 1070

jamb 1986

A larger percentage of tropical soils tends to be acidic because they

Acontain large quantities of potash

Bcontain large quantities of lime

Close a high proportion of their organic matter to running water

Dlose lime and potash from the top soil through rain action

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Question 1071

jamb 1986

The swollen shoot disease of cocoa tree is caused by a

Avirus

Bfungus

Cbacterium

Dprotozoan

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Question 1072

jamb 1986

In community, bacteria and fungi are referred to as

Aproducers

Bdecomposers

Cscavengers

Dconsumers

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Question 1073

jamb 1986

Which of the following ecological factors are common to both terrestrial and aquatic habitats?

ARainfall, temperature and light

BSalinity, rainfall and altitude

CTides, wind, rainfall and altitude

DpH, salinity, rainfall and humidity.

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Question 1074

jamb 1986

Which of these disease CANNOT be prevented by immunization?

APoliomyelitis

BTuberculosis

CCholera

Donchocerciasis

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Question 1075

jamb 1986

In an agricultural ecosystem, the biotic component consists of

Acrop, pest and beneficial insects

Bcrops, temperature and humidity

Cpests, beneficial insects and water

Dcrops, water and soil

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Question 1076

jamb 1986

In an ecosystem, animals which feed directly on plants are called

Asecondary consumers

Bprimary consumers

Cproducers

Dpredators

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Question 1077

jamb 1986

An instrument that can be used to demonstrate phototropism and geotropism in plants is the

Aauxanometer

Bpotometer

Cklinostat

Dphotometer

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Question 1078

jamb 1986

The hormones which regulates the amount of glucose in the blood is called

Aadrenalin

Bauxin

Cinsulin

Dthyroxine

View Explanation & Discuss

Question 1079

jamb 1986

Which of the following is an example of discontinuous variation?

Askin colouration

Bleft handedness

Cbody weight

DHeight

View Explanation & Discuss

Question 1080

jamb 1986

If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal?

AThree

BTwo

COne

DNone

View Explanation & Discuss

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