WAEC Biology Past Questions & Answers - Page 215

1,071.

Which if the following organisms is not classified as an animal?

A.

Amoeba

B.

Paramecium

C.

Euglena

D.

Obelia

Correct answer is C

No explanation has been provided for this answer.

1,072.

Evidence for evolution include the following except

A.

fossil records

B.

Comparative anatomy

C.

gene mutations

D.

geographical distribution of genes

Correct answer is C

A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology.

So a change in an organism's DNA can cause changes in all aspects of its life. 

Mutations are essential to evolution; they are the raw material for genetic variation.

1,073.

An animal that is active during the day is known as

A.

nocturnal animal

B.

diurnal animal

C.

terrestrial animal

D.

homoiothermic animal

Correct answer is B

No explanation has been provided for this answer.

1,074.

A dairy farmer allowed only his best milk producing cows to mate. In succeeding generations of cows, milk production increased. This outcome is an example of

A.

artificial selection

B.

natural selection

C.

competition

D.

cross fertilization

Correct answer is A

No explanation has been provided for this answer.