ECOLOGY - Jamb Biology Past Questions and Answers

Question 136:

• JAMB 1994

The water-retention capacity of a soil indicates its

A. Fertility
B. Capilarity
C. Aeration level
D. PH level

Question 137:

• JAMB 1994

A phenomenon by which an animal goes into a state of dormancy during the dry season is called

A. Hibernation
B. Aestivation
C. Incubation
D. Deactivation

Question 138:

• JAMB 1995

In a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the

A. The primary consumer has more energy than the primary poducer
B. Secondary consumer takes up all the energy contents of the primary consumer
C. Energy is shared equally between the three groups of organism
D. Secondary consumer gets only a small portion of the energy contained in the primary producer

Question 139:

• JAMB 1995

In a tropical rain forest, non-epiphytic ferns and allies occur as

A. Middle storey species
B. Upper storey species
C. Shade-loving species
D. Emergent species

Question 140:

• JAMB 1995

Colonization of a bare rock surface is termed

A. Evolution
B. Specification
C. Primary succession
D. Secondary succession