WAEC Biology Past Questions & Answers - Page 47

231.

A farmer who wants to keep seeds for three years before planting and wants to prevent them from sprouting uses

A.

auxin

B.

gibberellins

C.

abscisin

D.

cytokinins

Correct answer is C

No explanation has been provided for this answer.

232.

Blood pressure is higher in the arteries as a result of

A.

stree

B.

contraction and relaxation

C.

blockage in the arteries

D.

presence of valves

Correct answer is B

No explanation has been provided for this answer.

233.

A plant that commonly undergoes vegetative propagation by means of leaves is

A.

Hibiscus

B.

Bryophylum

C.

Crotalaria

D.

Spirogyra

Correct answer is B

No explanation has been provided for this answer.

234.

Which of the following features could be used to determine the growth of a seedling?

A.

Number of flowers

B.

Number of leaves

C.

Length of flowers

D.

Length of radicle

Correct answer is D

No explanation has been provided for this answer.

235.

Water and salts are both lost from the human body in

A.

breath and sweat

B.

breath and Urine

C.

breath, urine and sweat

D.

sweat and urine

Correct answer is D

No explanation has been provided for this answer.