Jamb Biology 2000 Past Questions and Answers

Question 31:

• JAMB 2000

The range at which soil essential elements concentration is recorded for optimal plant growth is marked

A. IV
B. III
C. II
D. I

Question 32:

• JAMB 2000

Which of the following growth activities in plants is brought about by gibberellins?

A. Rapid cell division
B. Tropic response
C. Cell elongation
D. Main cell elongation

Question 33:

• JAMB 2000

Which of the following are adaptations of animals to aquatic habitats?

A. Gills, streamlined bodies and lateral lines
B. Lateral line, streamlined bodies and lungs
C. Gills, scaly skin and lungs
D. Gills, streamlined bodies and spiracles

Question 34:

• JAMB 2000

Which of the following is an adaptation of tropical rainforest species?

A. Few stomata
B. Thick bark
C. Buttress roots
D. Reduced leaves

Question 35:

• JAMB 2000

In a food chain, each succeeding level in a forward direction represents

A. An increase in the number of individuals
B. A decrease in the number of individuals
C. An increase in the biomass of individuals
D. A gain in the total energy being transferred