JAMB Past Questions and Answers - Page 1452

7,256.

___________ consists of living factors(plants and animals) interacting with the non-living factors in a farm environment.

A.

Ecosystem

B.

Ecology

C.

Surroundings

D.

Community

Correct answer is A

Ecosystem refers to a community of crop plants and farm animals functioning together with their non-living environment.

7,257.

_________ is concerned with the study of the inter-relationships between groups of organisms living together in an area.

A.

Autecology

B.

Synecology

C.

Ecosystem

D.

Ecology

Correct answer is B

Synecology is concerned with the study of the inter-relationships between groups of organisms or species of organisms living together in an area. For example the study of different fishes in a fish pond in relation to their aquatic environment.

7,258.

Legumes that produce edible seeds are known as

A.

Pulses

B.

Grains

C.

Cereals

D.

Beverages

Correct answer is A

Cowpea is a member of the pulses or legumes. It belongs to the family leguminoseae. It is rich in protein. The fruit of cowpea is called Pod.

7,259.

Water yam is also known as

A.

Dioscorea alata

B.

Dioscorea cayenesis

C.

Dioscorea rotundata

D.

Dioscorea bulbifera

Correct answer is A

Yam belongs to the family Dioscoreacea. It is a root and tuber crop grown in West Africa and it is rich in carbohydrates.Water yam (Dioscorea alata).

7,260.

Which of the following is not a pre-planting operations?

A.

Land clearing

B.

Stumping

C.

Thinning

D.

Farm layout

Correct answer is C

Pre planting operations are the operations carried out before planting. Thinning is a post planting operation.