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.

1,141.

An essential element whose deficiency in plants will result in poor growth, particularly of the roots, and is essential for cell wall formation is

A.

calcium

B.

iron

C.

magnesium

D.

nitrogen

E.

phosphorus

Correct answer is A

No explanation has been provided for this answer.

1,142.

Which of these is a limiting factor with respect to human population size?

A.

emigration

B.

high standard of living

C.

immigration

D.

improved medicare

E.

natality

Correct answer is A

No explanation has been provided for this answer.

1,143.

An example of a conditioned reflex is

A.

blinking

B.

shout of exclamation

C.

knee jerk

D.

riding a bicycle

E.

twitching facial muscles

Correct answer is D

No explanation has been provided for this answer.

1,144.

Which of these traits shows discontinuous variation ?

A.

ability to roll the tongue

B.

hair colour

C.

height of stem

D.

girth

E.

weight of organism

Correct answer is A

No explanation has been provided for this answer.

1,145.

An instrument of measuring wind speed is called

A.

an anemometer

B.

a barometer

C.

a hygrometer

D.

a speedometer

E.

a thermometer

Correct answer is A

No explanation has been provided for this answer.