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.

1,721.

Which of the following factors would be least likely to act as a density dependent limiting factor in a population of mice?

A.

Buildup of waste products

B.

Predation

C.

Parasitism

D.

Unfavourable climate

Correct answer is C

No explanation has been provided for this answer.

1,722.

The detection of vibro cholera in public drinking water is a sign of

A.

clean water

B.

outbreak of disease

C.

water pollution

D.

decayed organisms in the water

Correct answer is C

No explanation has been provided for this answer.

1,723.

The use of water closet and septic tanks is preferred to the use of bucket and pit latrines because 

A.

it is cost effective

B.

contaminated faeces are completely kept away from flies

C.

the water for flushing contains chlorine which kills the germs

D.

It prevents flies from breeding

Correct answer is B

No explanation has been provided for this answer.

1,724.

Which of the following instruments would be most appropriate in comparing the air pressure at different places in the habitat?

A.

Hygrometer

B.

Barometer

C.

Photometer

D.

Air pressure disc

Correct answer is B

No explanation has been provided for this answer.

1,725.

The following are abiotic components of the ecosystem except

A.

bacteria

B.

topography

C.

water

D.

wind

Correct answer is A

No explanation has been provided for this answer.