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.

3,706.

In a tropical rain forest, non-epiphytic ferns and allies occur as

A.

middle story species

B.

upper story species

C.

shade-loving species

D.

emergent species

Correct answer is C

No explanation has been provided for this answer.

3,707.

The mammalian endocrine system is responsible for?

A.

 transmitting impulse

B.

regulating body temperature

C.

regulating osmotic pressure of blood

D.

chemical co-ordination

E.

the manufacture of blood

Correct answer is D

Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body.

The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.

3,708.

In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because

A.

it is produced by green plants during photosynthesis

B.

it is produced during respiration of animals

C.

it is absorbed inn ocean water

D.

green plants release it during the day

Correct answer is B

No explanation has been provided for this answer.

3,709.

In a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the

A.

primary consumer has more energy than the primary poducer

B.

secondary consumer takes up all the energy contents of the primary consumer

C.

energy is shared equally between the three groups of organism

D.

secondary consumer gets only a small portion of the energy contained in the primary producer

Correct answer is D

No explanation has been provided for this answer.

3,710.

The depth of illumination in a water body can be measured with a

A.

photometer

B.

secchi disc

C.

hydrometer

D.

anemometer

Correct answer is B

No explanation has been provided for this answer.