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Biology Past Questions

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5,032 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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5,032 questions

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Question 2191

waec 1989

Which of the following structures is responsible for osmoregulation?

BII

CIII

DIV

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Question 2192

jamb 1989

Which ecological factor exerts the greatest influence on the structure of the profiles?

ATopographic

BEdaphic

CBiotic

DClimatic

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Question 2193

jamb 1989

In which of the habitats will plants show xeromorphic features most prominently?

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Question 2194

jamb 1989

What is the name of the structure labelled 2?

AOdontoid process

BOlecranon process

CPatella

DCondyle

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Question 2195

jamb 1989

Which of the labeled bone is the ulna?

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Question 2196

jamb 1989

The type of joint at the point labeled 5 is the?

Apivot joint

Bgliding joint

Cball and socket joint

Dhinge joint

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Question 2197

jamb 1989

What is the function of 3?

Acutting of large piece of food

Bseizure and tearing of prey

CGrinding of food

DTearing of flesh only

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Question 2198

jamb 1989

Which of the structure is the molar?

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Question 2199

jamb 1989

The structure labelled 2 is the

Acompound eye

Bocellus

Cantenna

Dlabial palp

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Question 2200

jamb 1989

Which of the labelled parts is used for feeling?

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Question 2201

jamb 1989

Farmers practise crop rotation because it

Ahelps to prevent soil erosion

Ballows two crops to be planted at the same time

Chelps to conserve soil fertility

Dis an alternate to shifting cultivation

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Question 2202

jamb 1989

Most irrigated lands often become unproductive in later years because of

Aloss of fertility

Bincrease in salinity

Csoil erosion

Dloss of water

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Question 2203

jamb 1989

5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil?

A40.0g per 100 g dry soil

B4.4g per 100g dry soil

C4.0 g per 100g dry soil

D0.4g per 100g dry soil

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Question 2204

jamb 1989

Which of the following is a dangerous product of coal burning?

ASulphur dioxide

BCarbon dioxide

CCarbon

DNitrogen

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Question 2205

jamb 1989

which of the following disease can be caused by a bacterium?

ARingworm

BPoliomyelitis

CMalaria

DSyphilis

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Question 2206

jamb 1989

which of the ways of controlling bilharzia can result in pollution?

Aclearing water weeds on which the snail feed

BTreating infected people with drugs

CPreventing contamination of water by infected urine and faeces

DApplying chemical to kill the snails

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Question 2207

jamb 1989

A physiological adaptation of plants to the problem of excessive water loss is

Areduction in the number of stomata

Breversal of the normal stomatal rhythm

Cpossession of shallow roots

Dpossession of waxy cuticles

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Question 2208

jamb 1989

Lichen is an example of

Asaprophytic organism

Ba symbiotic association

Can epiphytic plant

Da carnivorous plant

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Question 2209

jamb 1989

In an ecosystem, the LEAST efficient energy transfer link is from

Aproducers to primary consumers

Bsun to producers

Cprimary consumers to secondary consumers

Dsecondary consumers to decomposers

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Question 2210

jamb 1989

Which of the following is a sex-linked character?

ASickle-cell anaemia

BTongue rollling

CSkin colour

DColour blindness

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