WAEC Biology Past Questions & Answers - Page 134

666.

Micro-organisms are important in recycling nutrients because

A.

they are capable of multiplying quickly

B.

they are eaten by large organisms

C.

they break down dead organic materials

D.

many of them are parasites

Correct answer is C

No explanation has been provided for this answer.

667.

Measles in infants can be prevented by

A.

sleeping under mosquito nets

B.

providing clean water supply

C.

taking anti-malaria tablets

D.

vaccinating young children

Correct answer is D

No explanation has been provided for this answer.

668.

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

A.

spread of disease

B.

number of deaths

C.

number of predators

D.

amount of food available

Correct answer is D

No explanation has been provided for this answer.

669.

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

A.

mangrove swamp

B.

coastal savanna

C.

guinea savanna

D.

shrub biome

Correct answer is A

No explanation has been provided for this answer.

670.

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

A.

counteract the effect of gravity

B.

lift the bird so that it can remain airborne

C.

enable the pectoral, muscles to contract easily

D.

change the direction of the flying bird

Correct answer is A

No explanation has been provided for this answer.