WAEC Biology Past Questions & Answers - Page 23

111.

When a large number of organisms share limited resources, the result is

A.

mutualism

B.

extinction

C.

commensalism

D.

competition

Correct answer is D

No explanation has been provided for this answer.

112.

An association between living organisms in which one organism lives on and feeds at the expense of the other organism is known as

A.

mutualism

B.

commensalism

C.

parasitism

D.

predation

Correct answer is C

No explanation has been provided for this answer.

113.

Which of the following features is a characteristic of aquatic plants?

A.

multiple epidermis

B.

heavily lignified tissue

C.

finely divided leaves

D.

succulent stem

Correct answer is D

No explanation has been provided for this answer.

114.

The illustration below is a food chain.

Grass→grasshopper→domestic fowl→hawk

What would happen if the population of domestic fowl decreases?

A.

grasshoppers would decrease

B.

hawks would increase

C.

grasshoppers would increase

D.

grasses available to grasshoppers

Correct answer is C

No explanation has been provided for this answer.

115.

Plants and animals of an ecosystem make up a

A.

habitat

B.

succession

C.

community

D.

population

Correct answer is C

A community is a group of interacting organisms that may be of the same species or not as long as they share a common habitat.