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.

621.

The smallest living organism which shares the characteristics of both living and non-living matter are

A.

bacteria

B.

fungi

C.

viruses

D.

protozoa

Correct answer is C

No explanation has been provided for this answer.

622.

What is the term used to describe biotic and abiotic factors in the environment of the organism?

A.

habitat

B.

biome

C.

ecosystem

D.

ecological niche

Correct answer is C

An ecosystem consists of all the biotic and abiotic factors that influence that community.

623.

The ability of chameleon to change its colour rapidly is an adaptation for

A.

obtaining food

B.

attraction mate

C.

communication

D.

escaping detection

Correct answer is D

No explanation has been provided for this answer.

624.

Which of the following can cause shrinkage of living cells?

A.

Deionized water

B.

Hypotonic solution

C.

Isotonic solution

D.

Hypertonic solution

Correct answer is D

No explanation has been provided for this answer.

625.

In which of the following does external fertilization take place?

A.

toad

B.

lizard

C.

bird

D.

cockroach

Correct answer is A

External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. Many fish, amphibians, and other sexual aquatic animals use external fertilization (the exceptions are aquatic mammals, sharks, and some other special types of fish).