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.

741.

Reading the verdict of a case by a magistrate is an example of

A.

A reflex action

B.

An instinct

C.

A conditioned reflex

D.

A voluntary action

Correct answer is D

A voluntary action is controlled by the cerebrum in the forebrain which is the largest part of the brain.

742.

The number of times an organism occurs within a given area of a habitat is referred to as

A.

Population growth rate

B.

Population frequency

C.

Population growth rate

D.

Population density

Correct answer is B

Population frequency refers to the number of times an organism occurs within a given area of a habitat

743.

A population is best described as

A.

A group of the same species of organisms living together

B.

A group of animals and plants living together

C.

A group of insects and grasses

D.

Different species of wild animals

Correct answer is A

A population is described as the total number of organisms of the same species living together in a given area at a particular time.

744.

A virus can sometimes be regarded as a living organism because it

A.

causes diseases in plants and animals

B.

It exists in a variety of shapes

C.

Is easily visible with the aid of an electron microscope

D.

Reproduces in living cells

Correct answer is D

A virus is regarded as animate because it can reproduce in living cells. It can also be inanimate when it is not in living cells.

745.

One important characteristic of green plants is that they

A.

possess specialized sense organs

B.

Are usually motile

C.

Are autotropic

D.

Respond slowly to stimuli

Correct answer is C

One of the important characteristics of green plant is that they can manufacture their food (Autotrophic).