Jamb Biology 1995 Past Questions and Answers

Question 31:

• 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 32:

• JAMB 1995

In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because

A. It is produced by green plants during photosynthesis
B. It is produced during respiration of animals
C. It is absorbed inn ocean water
D. Green plants release it during the day

Question 33:

• 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 34:

• JAMB 1995

Colonization of a bare rock surface is termed

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

Question 35:

• JAMB 1995

Which of the following is a measure for the control of bilharzia?

A. Cutting low brushes around homes
B. Application of molluscicides in water bodies
C. Screening windows and doors with mosquito nets
D. Application of herbicides in water bodies