ECOLOGY - Jamb Biology Past Questions and Answers

Question 86:

• JAMB 1988

Which of the following causes pollution?

A. Consumption of canned drink
B. The addition of fertilizer to farmland
C. Respiration of living organism
D. Burning of refuse

Question 87:

• JAMB 1988

Dead plants and animals are decomposed by bacteria and fungi into

A. Nitrate
B. Nitrites
C. Amino acids
D. Ammonium

Question 88:

• JAMB 1989

The seedlings in rice field were found to have thin lanky growth with reddish leaves and poor root development. This is because the soil lacks

A. Sulphur
B. Phosphorus
C. Potassium
D. Iron

Question 89:

• JAMB 1989

A corn differs from a bulb in that

A. Its stem is the main food storage organ
B. It has a flattened discshaped stem
C. Buds are absent in the axils of the leaves
D. Adventitious roots are present

Question 90:

• JAMB 1989

Exponential increase in the population of an organism is a characteristic feature off

A. Binary fission
B. Sexual reproduction
C. Budding
D. Vegetative propagation