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.

606.

The arrangement of ovules attached to the sides of a syncarpous ovary with a single chamber is referred to as

A.

free-central placentation

B.

axile placentation

C.

parietal placentation

D.

marginal placentation

Correct answer is C

No explanation has been provided for this answer.

607.

The ability of the eyes to focus on both near and distant objects is termed

A.

image formation

B.

refraction

C.

hypermetropia

D.

accommodation

Correct answer is D

The ability of the eye to focus on distant and near objects clearly on the retina of the eye is called accommodation. When our eyes see distant objects then the ciliary muscles relax and the focal length is maximum in this position.

608.

The hereditary characters in plants and animals are located on the

A.

gene

B.

mucleus

C.

chromosome

D.

cell

Correct answer is C

No explanation has been provided for this answer.

609.

The crossing of individuals of the same species with different genetic characters is

A.

croos breeding

B.

polygenic inheritance

C.

non-disjunction

D.

inbreeding

Correct answer is A

No explanation has been provided for this answer.

610.

The rate of transpiration is NOT affected by

A.

the weight of the stomata pores

B.

humidity

C.

temperature

D.

the size of the stomata pores

Correct answer is A

No explanation has been provided for this answer.