Biology questions and answers

Biology Questions and Answers

How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.

1,806.

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.

1,807.

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.

1,808.

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.

1,809.

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.

1,810.

The function of the convex lens in the correction of eye defects is to

A.

diverge light rays from far objects to focus image on the retina

B.

converge light rays to focus image behind the retina

C.

converge light rays to focus time image before the retina

D.

converge light rays from far objects to focus their image on the retina

Correct answer is D

No explanation has been provided for this answer.