WAEC Biology Past Questions & Answers - Page 126

626.

A solution which contains all the required elements in their correct proportions is known as a

A.

culture nutrient

B.

growth medium

C.

complete culture solution

D.

nutrient solution

Correct answer is C

No explanation has been provided for this answer.

627.

Which of the following groups contains only macro-nutrients?

A.

phosphorus, nitrogen and molybdenum

B.

manganese, copper and zinc

C.

boron, sulphur and iron

D.

calcium, magnesium and potassium

Correct answer is D

No explanation has been provided for this answer.

628.

The process by which fruits develop without fertilization is called

A.

parthenocarpy

B.

pathology

C.

hermaphroditism

D.

layering

Correct answer is A

No explanation has been provided for this answer.

629.

The following insects undergo incomplete metamorphosis except

A.

termite

B.

cockroach

C.

butterfly

D.

locust

Correct answer is C

No explanation has been provided for this answer.

630.

Which of the following occurs when a person looks at a distant, dim object and then looks
at a much closer, bright object? In each eye, the pupil becomes

A.

larger, while the lens becomes thicker

B.

larger, while the lens becomes thinner

C.

smaller, while the lens becomes thicker

D.

smaller while the lens becomes thinner

Correct answer is D

No explanation has been provided for this answer.