WAEC Biology Past Questions & Answers - Page 164

817.

In the test for starch, the leaf is first placed in boiling water to

A.

remove the chlorophyll

B.

dissolved the waxy cuticle

C.

kill and make the leaf permeable

D.

turn it blue-black

Correct answer is C

No explanation has been provided for this answer.

818.

When fertilization occurs that leads to formation of a zygote, which of the following processes takes place?

A.

The tail of the sperm fuses with the egg cell

B.

Both tail and head of the sperm fuse with the egg cell

C.

The nucleus of the sperm fuses with the egg cell

D.

The egg cell develops on its own without the sperm

Correct answer is C

No explanation has been provided for this answer.

819.

The hair on the human skin will stand erect when the person is

A.

in an air-conditioned room

B.

strolling in the sun

C.

taking a hot drink

D.

doing strenuous exercise

Correct answer is A

No explanation has been provided for this answer.

820.

Which of the following parts of the eye contains light sensitive cells?

A.

Choroid

B.

iris

C.

Retina

D.

Lens

Correct answer is C

No explanation has been provided for this answer.