JAMB Biology Past Questions & Answers - Page 67

331.

An example of an endospermous seed is

A.

been seed

B.

cashew nut

C.

cotton seed

D.

maize grain

Correct answer is D

No explanation has been provided for this answer.

332.

The ability of a living organism to detect and respond to changes in the environment is referred to as

A.

locomotion

B.

taxis

C.

irritability

D.

growth

Correct answer is C

No explanation has been provided for this answer.

333.

Which of the following plant hormone is responsible for ripening of fruits?

A.

Gibberellins

B.

Abscisic acid

C.

Ethylene

D.

Cytokinins

Correct answer is C

No explanation has been provided for this answer.

334.

When a cell is placed in solution and the size of the cell increases, the concentration of solution is said to be

A.

isotonic

B.

dilute

C.

hypotonic

D.

hypertonic

Correct answer is C

No explanation has been provided for this answer.

335.

The insects in which the maxillae are modified into a long coiled proboscis is

A.

housefly

B.

butterfly

C.

mosquito

D.

grasshopper

Correct answer is B

No explanation has been provided for this answer.