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Biology Past Questions and Answers

Waec Biology Questions

Question 216:

Which of the following organisms reduces nitrates in the soil to gaseous nitrogen?

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A Euglena
B Protozoan
C Denitrifying bacterium
D Parasitic mould
E Nitrifying bacterium

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Question 217:

What type of relation exists between a tapeworm and an infected mammal?

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A Symbiosis
B Commensalism
C Predation
D Parasitism
E Saprophytism

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Question 218:

Which of the following best describes a marine habitat?

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A Large body of water
B Which has no distinctive color or taste
C With high concentration of salt
D With little suspended materials
E With no water weed

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Question 219:

The following are features of the tropical rain forest except

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A Abundant water supply
B Loose and moist soil
C Short trees growing benealth tall trees
D Scanty trees with small leaves
E Presence of many animals

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Question 220:

The following are features of Northern Guinea Savanna except

SchoolNGR Classroom

A Presence of tall trees with thick bark
B Bare soil with very few trees
C Presence of fire-resistant trees
D Abundant herbivores
E Predominance of woody trees

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