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.

1,161.

Which of the following agricultural activities has the least harmful effect on the environment ?

A.

applying fertilizers

B.

practicing crop rotation

C.

practicing monocropping

D.

spraying herbicides

E.

spraying pesticides

Correct answer is B

No explanation has been provided for this answer.

1,162.

When a student suddenly runs into a snake on a pathway, which of these chemical messengers are released?

A.

adrenaline

B.

insulin

C.

oestrogen

D.

testosterone

E.

thyroxine

Correct answer is A

No explanation has been provided for this answer.

1,163.

A common characteristic of ALL living things is

A.

gametogenesis

B.

hibernation

C.

photosynthesis

D.

phototropism

E.

respiration

Correct answer is E

No explanation has been provided for this answer.

1,164.

An organism existing at the colonial level of life is

A.

chlamydomonas

B.

euglena

C.

paramecium

D.

spirogyra

E.

volvox

Correct answer is E

No explanation has been provided for this answer.

1,165.

Root pressure and the transpiration pull are biophysical processes which account for the

A.

ascent of water into leaves

B.

exchange of gases on leaf surfaces

C.

movement of manufactured food from leaves to storage tissues

D.

opening and closing of stomata

E.

Release of energy from glucose molecules

Correct answer is A

No explanation has been provided for this answer.