WAEC Biology Past Questions & Answers - Page 116

576.

A meal consisting of yam and a lot of vegetables is not balanced because it does not contain

A.

carbohydrates

B.

proteins

C.

vitamins

D.

minerals

Correct answer is B

No explanation has been provided for this answer.

577.

Why poor soil is treated with lime is to increase the quantity of

A.

nitrogen

B.

phosphorus

C.

carbohydrates

D.

sulphur

Correct answer is A

No explanation has been provided for this answer.

578.

The amount of starch in a germinating seed decreases because the starch is used up

A.

for respiration and to build cells

B.

to build a cellulose cell wall

C.

to develop meristematic tissues

D.

to produce enzymes

Correct answer is A

No explanation has been provided for this answer.

579.

Older parts of plant roots do not normally absorb water because

A.

they lack xylem

B.

they have a small surface area

C.

the phloem is dead

D.

they lack root hairs

Correct answer is D

No explanation has been provided for this answer.

580.

An inferior ovary of a flower is situated

A.

below the floral parts

B.

above the floral parts

C.

at the same level with all the floral parts

D.

at the centre of the floral parts

Correct answer is A

No explanation has been provided for this answer.