WAEC Biology Past Questions & Answers - Page 319

1,591.

Which of the following actions is not an example of a simple reflex action?

A.

Knee jerk

B.

Blinking of the eye

C.

Withdrawing the hand from hot objects

D.

Reading a book

E.

Contraction of the iris

Correct answer is D

No explanation has been provided for this answer.

1,592.

The conventional method of sewage disposal involves all the following except defecating

A.

into pit latrines

B.

in open fields

C.

into cesspits

D.

into bucket latrines

E.

into water home sewage systems

Correct answer is B

No explanation has been provided for this answer.

1,593.

The process in which insects undergo conspicuous changes in form and appearance during development
is known as

A.

ecdysis

B.

metamorphosis

C.

aestivation

D.

migration

E.

hibernation

Correct answer is B

No explanation has been provided for this answer.

1,594.

The process by which plants manufacture food from carbondioxide and water using energy from the sun is
termed

A.

chemosynthesis

B.

photosynthesis

C.

autotrophism

D.

heterotrophism

E.

transpiration

Correct answer is B

No explanation has been provided for this answer.

1,595.

The two important physical processes involved in the absorption and transport of materials in plants are

A.

diffusion and plasmolysis

B.

cohesion and adhesion

C.

flaccidity and turgidity

D.

osmosis and diffusion

E.

plasmolysis and capillarity

Correct answer is D

No explanation has been provided for this answer.