JAMB Agricultural Science Past Questions & Answers - Page 64

316.

Gestation period is defined as the time

A.

Of fusion of the sperm and the egg

B.

Between conception and parturition

C.

Of release of ovum from the ovary

D.

Of the birth of the young animal

Correct answer is B

Gestation period is defined as the time between conception and birth (parturition).

317.

In subsistence agriculture

A.

Yields are usually high

B.

Surplus produce is small

C.

Savings are made

D.

Farm sizes are large

Correct answer is B

Subsistence agriculture or farming is a form of farming in which nearly all the crops or livestock raised are used to maintain the farmer and farmers family, leaving little, if any, surplus for sale or trade.

318.

The primary role of agriculture is the provision of

A.

Foreign exchange earnings

B.

Raw materials for industries

C.

Food for man and his animals

D.

Employment and income for farmers

Correct answer is C

The primary role of agriculture is the provision of food for man and his animals.

319.

In the diagram illustrated above, fertilization takes place in the part labelled

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.

320.

Which of the following is not a function of the ruminal microorganism?

A.

Digestion of cellulose

B.

Conversion of plant proteins into microbial protein

C.

Production of vitamin B

D.

Production of gas in the rumen

E.

Cructation of the ruminal gas

Correct answer is E

No explanation has been provided for this answer.