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.

4,206.

Which of the following hormones is produced during fright or when agitated?

A.

Insulin

B.

Adrenalin

C.

Thyroxine

D.

Pituitrin

E.

Progesterone

Correct answer is B

No explanation has been provided for this answer.

4,207.

which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing?

A.

Medulla

B.

Cerebrum

C.

Cerebellum

D.

Pineal body

E.

Olfactory lobe

Correct answer is A

No explanation has been provided for this answer.

4,208.

If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?

A.

water does not reach the leaves

B.

water and salts remained below the ring portion

C.

there is a withdrawal of water from the root by soil

D.

manufactured food does not reach the roots

E.

the roots store too much water

Correct answer is D

No explanation has been provided for this answer.

4,209.

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

A.

uriniferous tubules

B.

Bowman's capsule

C.

glomerulus

D.

malpighian capsule

E.

renal artery

Correct answer is A

The uriniferous tubules refer to each of the long, fine, convoluted tubules conveying urine from the glomeruli to the renal pelvis in the vertebrate kidney. Water and salts are reabsorbed into the blood along their length.

4,210.

In anaerobic respiration, glucose is converted to one of the following

A.

Carbon dioxide and water

B.

 Carbon dioxide only

C.

Carbon dioxide and alcohol

D.

Alcohol and water

E.

water and acetic acid

Correct answer is C

No explanation has been provided for this answer.