FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 661:

• JAMB 2000

I. High birth rate and high immigration rate II. Low birth rate and high immigration rate II. Low mortality rate and low emigration IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements?

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

Question 662:

• 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 663:

• JAMB 2000

The disaster that would have the least destructive impact on animal life and balance in nature is

A. Chemical pollution
B. Forest fires
C. Oil spillage
D. Grasshopper pests

Question 664:

• JAMB 2000

The legs and beak of an egret resemble those of the heron because they

A. Both feed on fishes
B. Are both birds
C. Occupy similar niche
D. Occupy the same trophic level

Question 665:

• JAMB 2000

The older fossil-bearing rocks, in contrast to the more recent ones, are more likely to contain

A. Animal rather than plant remains
B. Invertebrates rather than birds
C. Flowering plants rather than mosses
D. Reptiles rather than fishes