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.

4,091.

A fundamental similarity between nervous and hormonal system is that both 

A.

involve chemical transmission

B.

have widespread effects

C.

shed chemicals into the blood stream

D.

evoke rapid responses

Correct answer is D

No explanation has been provided for this answer.

4,092.

When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to

A.

the addition of saccharin

B.

the addition of sugar

C.

the addition of whisky or local gin

D.

some complex hydrolytic reaction

E.

anaerobic respiration of an organism

Correct answer is E

No explanation has been provided for this answer.

4,093.

Fruit enlargement can be induced by spraying young ovary with

A.

cytokinin, abscisic acid, and ethylene

B.

gibberellin, ethylene, and abscisic acid

C.

auxin, abscisic acid, and ethylene

D.

auxin, cytokinin, and gibberellin

Correct answer is D

No explanation has been provided for this answer.

4,094.

Treatment of a poor soil with lime supplies

A.

Sulphur

B.

Calcium

C.

Phosphorus

D.

Sodium

E.

Nitrogen

Correct answer is B

Treating the soil with lime is to improve the calcium content of the soil. It provides a source of calcium and magnesium for plants.

4,095.

The irreversible life process by which new protoplasm is added to increase the size and weight of an organism can be termed

A.

anabolism

B.

catabolism

C.

growth

D.

development

Correct answer is C

No explanation has been provided for this answer.