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.

4,171.

The amount of water loss from a leaf can be detected using

A.

lime-water

B.

red litmus paper

C.

blue litmus paper

D.

blue cobalt chloride paper

E.

pink cobalt chloride paper

Correct answer is D

No explanation has been provided for this answer.

4,172.

A mosquito which produces eggs which float, and whose larvae lie horizontal to the water surface, also rests at the angle on a vertical surface. This type of mosquito is

A.

Aedes

B.

Anopheles

C.

Culex

D.

Tiger mosquito

E.

none of the above

Correct answer is B

No explanation has been provided for this answer.

4,173.

Below are some group of diseases. Which group of diseases is caused by bacteria?

A.

Tuberculosis, smallpox

B.

Gonorrhoea, measles

C.

Tuberculosis, polio

D.

Sleeping sickness, measles

E.

Syphilis, gonorrhoea

Correct answer is E

No explanation has been provided for this answer.

4,174.

A few grams of dried soil were first heated until red hot and then further heated until no more smoke was released. This experiment was to determine

A.

amount of water in soil

B.

percentage of water in soil

C.

presence of humus in soil

D.

resistance of laterities to heat

E.

release of smoke from the soil

Correct answer is C

No explanation has been provided for this answer.

4,175.

Leguminous plants, e.g Mucana, are usually planted in cultivated farmlands because they

A.

enrich the soil with phoshates

B.

provide animals with food

C.

enrich the soil with organic nitrogen

D.

protect the soil from being over-heated

E.

protect the micro organisms in the soil

Correct answer is C

No explanation has been provided for this answer.