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.

211.

The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?

A.

osmosis

B.

autolysis

C.

plasmolysis

D.

diffusion

Correct answer is C

No explanation has been provided for this answer.

212.

The organelles in cells which are also referred to as suicidal bags are the 

A.

mitochondria

B.

lysosomes

C.

ribosomes

D.

nuclei

Correct answer is B

No explanation has been provided for this answer.

213.

Diagrams X and Y below are illustrations of transverse sections of a part of plants. Study them and answer this question.

The part labelled Il is the?

A.

Pith

B.

xylem

C.

Phloem

D.

endodermis

Correct answer is A

No explanation has been provided for this answer.

214.

Diagrams X and Y below are illustrations of transverse sections of a part of plants. Study them and answer this question.

The part responsible for conducting water and dissolved mineral salts from the soil to the leaves is labelled

A.

I

B.

II

C.

III

D.

IV

Correct answer is D

No explanation has been provided for this answer.

215.

Evidence of evolution include the following except?

A.

fossil records

B.

comparative anatomy

C.

molecular records

D.

geographical distribution of organisms

Correct answer is D

Some materials present geographical distribution of organisms as an evidence of evolution while some do not.