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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.

156 questions JAMB 2572 WAEC 2099 NECO 351 CUSTOM 10

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Past Questions

156 questions

Question 1 of 20 156 total questions

Question 31

waec 2004

An abandoned refuse dump mag' be a good site for an intending vegetable farmer because

A. very little manual work would be done by the farmer

Bmicrobial activity had released nutrients into the soil

Cthe roots of vegetable seedlings easily get enough light

Drefuse dumps possess plenty of gas which scares away rodents

View Explanation & Discuss

Question 32

waec 2004

The drugs which inhibit the growth of disease-causing organisms and thus used in the treatment of infections are referred to as

Aantibodies

Bantibiotics

Cantitoxic

Dseptics

View Explanation & Discuss

Question 33

waec 2004

If a piece of abandoned farmland went through a series of floral and faunal changes and became established with
permanent plant and animal population, it could be said to have undergone

Atransformation

Bsuccession

Ccompetition

Devolution

View Explanation & Discuss

Question 34

waec 2004

Which of the following methods is best for the determination of population density of Tridax in an open held?

Atransect

Bquadrat

CSweep-net

Dpit-fall

View Explanation & Discuss

Question 35

waec 2004

When a farmer sprays crops with a pesticide, the pesticide becomes

Apoisonous to all plants

Bis broken down by soil algae

Ceasily washed down into lakes and rivers

Dabsorbed by bodies of mammals

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Question 36

waec 2004

Plants found in the aquatic habitat are generally referred to as

Aepiphytes

Bhalophytes

Cxerophytes

Dhydrophytes

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Question 37

waec 2004

Which of the following defines symbiosis?

Aparasites feed on dead organisms

Bboth organisms benefit mutually by living together

CSaprophytes feed on living organisms

Dorganisms serve as host to parasite

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Question 38

waec 2004

Which of the following features enables the tapeworm to live successfully in the small intestine of human?

AHook and suckers for strong attachment

BAlong neck for forming young proglottis

CThe absence of segmentation and appendages

DPossession of flame cells for excretion

View Explanation & Discuss

Question 39

waec 2004

The continuity of an ecosystem depends on constant flow
of energy and circulation of matter. However,
the amount of energy passed on from decomposers to
producers should be

Agreat

Bsmall

Creversible

Dzero

View Explanation & Discuss

Question 40

waec 2004

An importance of food web is that living organisms

Ause web to collect food

Bcan live on their own

Chave to form a web

Ddepend on one another for their existence

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Question 41

waec 2004

Which of the following are consumers in these food chains?

Amaize and rabbits

Bchicken, rats and maize

Ceagle, maize and snakes

Dhumans, eagle and snakes

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Question 42

waec 2004

Conservation of soil fertility employs crop rotation because

Acrops are allowed to grow at their own rates

Bit encourages the healthy growth of plants

Cit allows utilization of soil nutrients at different levels

Ddifferent crops grow at the same time

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Question 43

waec 2004

Which of the following is not essential in the studying of the ecological factors that directly affect plants?

Awind

Btemperature

Cherbivores

Dcarnivores

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Question 44

waec 2004

Biosphere is best described as

Aall parts of the earth where life exists

Bthe non-living parts of an ecosystem

Ca components of an ecosystem

Dall the members of a single species in a habitat

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Question 45

waec 2004

Which of the following teeth are well-developed to form the carnassial teeth of carnivorous mammals? The

Afirst lower premolar and third upper molar

Bfirst lower molar and third upper premolar

Csecond lower premolar and first lower molar

Dfirst lower molar and last upper premolar

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Question 46

waec 2004

The break-down of food in o simple, soluble and absorbable end-products is termed

Aabsorption

Bingestion

Cnutrition

Ddigestion

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Question 47

waec 2004

An organism is considered a heterotroph when it

Afeeds on inorganic food

Bfeeds on already manufactured food

Cfixes atmospheric nitrogen

Drespires anaerobically

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Question 48

waec 2004

The deficiency of vitamin D and calcium ions in the diet of a human causes

Aanaemia

Bnight-blindness

Ckwashiokor

Drickets

View Explanation & Discuss

Question 49

waec 2004

Which of the following is not true about a potted plant left in the laboratory for one week without watering?

Athe cells of the plant will be turgid

Bthere will be wilting of the plant

Cthe leaves are likely to tum yellow

Dplant will not take in enough nutrients

View Explanation & Discuss

Question 50

waec 2004

The deficiency of manganese in plants results in?

Adeath of shoot

Bleaves turning yellow

Cstunted growth

Dpoor root development

View Explanation & Discuss

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