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Biology Past Questions

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2,099 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

2,099 questions

Question 1 of 20 2,099 total questions

Question 621

waec 2002

Measles in infants can be prevented by

Asleeping under mosquito nets

Bproviding clean water supply

Ctaking anti-malaria tablets

Dvaccinating young children

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Question 622

waec 2002

The numbers in a population would rise, if there was an increase in the

Aspread of disease

Bnumber of deaths

Cnumber of predators

Damount of food available

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Question 623

waec 2002

The possession of breathing roots is a characteristic of plants growing in

Amangrove swamp

Bcoastal savanna

Cguinea savanna

Dshrub biome

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Question 624

waec 2002

The concave shape of a birds wing during flight, ensures that the greater air pressure under the wings will

Acounteract the effect of gravity

Blift the bird so that it can remain airborne

Cenable the pectoral ,muscles to contract easily

Dchange the direction of the flying bird

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Question 625

waec 2002

Which of the following terms ensures the survival of an organism in its environment?

AHibernation

BSuccession

CAdaptation

DCompetition

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Question 626

waec 2002

The total amount of energy entering a food chain is that which is present in the

Aconsumer

Becosystem

Cproducer

Ddecomposer

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Question 627

waec 2002

Which of the following measures is most likely to cause a damage to the ecosystem in the control of pests
and weeds?

AUse of ladybird insects to feed on aphids

Bintroduction of bacterium to kill larvae of butterfly

CIntroduction of Tilapia fish in ponds to feed on mosquito larvae

DSpraying insecticides to destroy cotton- stainers in a cotton-field

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Question 628

waec 2002

In any food chain, the first member must be a

Acarnivore

Bherbivore

Czooplankton

Dautotroph

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Question 629

waec 2002

The importance of practising crop-rotation in agriculture is to

Acontrol soil erosion

Bmaintain the fertility of the soil

Cimprove the nutritional value of crops

Densure growth of cash crops

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Question 630

waec 2002

Which of the following processes removes water from the water cycle?

ACondensation

BPerspiration

CPhotosynthesis

DTranspiration

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Question 631

waec 2002

Ecology simply means the study of

Athe properties of a habitat

Binterrelationship between organisms and their environment

Cseveral species of plants and animals

Dinterrelationship between plants and animals.

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Question 632

waec 2002

Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing
sugars, which of the following trends of colour changes would be observed?

ABlue → black → blue → brown → clear

BBrown → blue → brick red → clear

CBrown → violet → blue → clear

DBrown → blue → violet → milky

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Question 633

waec 2002

The structures labelled II are associated with

Astorage of plant nutrients

Borganic acids

Cnitrogen-fixing bacteria

Dputrefying microbes

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Question 634

waec 2002

The structures labelled II are

Agroundnut seeds

Bunderground root nuts

Croot Tubers

Droot nodules

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Question 635

waec 2002

Which of the following substances is contained in chloroplasts?

AStarch

BSugar

CGlycogen

DDextrin

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Question 636

waec 2002

After fertilization in the flowering plants, the zygote develops into the

Aplumule

Bradicle

Ccotyledon

Dembryo

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Question 637

waec 2002

In flowering plants, fertilization would occur when

Athe pollen grows downwards penetrating the style

Ba pollen grain is transferred to the stigma

Cone of the nuclei inside the pollen tube fuses with the ovum

Dthe nucleus of the pollen tube divides

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Question 638

waec 2002

Which of the following is not an example of entomophilous flower?

AHibiscus

BFlamboyant

CGuinea grass

DAlIamanda

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Question 639

waec 2002

When a person moves from a darkroom into bright light, the pupil becomes

Ared

Blarger

Cwhite

Dsmaller

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Question 640

waec 2002

The structure of the ear that is responsible for balancing is the

Asemi-circular carnals

Bpinna

Cauditory nerve

Dfenestra ovalis

View Explanation & Discuss

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