ECOLOGY - Jamb Biology Past Questions and Answers

Question 206:

• JAMB 2004

Ecological Zone	Temperature (oC)	Rainfall (mm)
I	45	300
II	32	2000
III	30	2200
IV	15	800

From the table above which of the zones is likely to be desert?

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

Question 207:

• JAMB 2004

The progressive loss of energy at each level in a food chain leads to

A. An increase in biomas at each successive level
B. A decrease in biomass at each successive level
C. An increase in the number of organism at each successive level
D. An increase in the total number of organisms at each successive level

Question 208:

• JAMB 2004

A state in Nigeria that is most susceptible to desert encroachment is

A. Kwara
B. Taraba
C. Kaduna
D. Katsina

Question 209:

• JAMB 2004

The scarcity of food causes a sudden decrease in population size by

A. Decreasing the reproductive rate
B. Bringing about immigration
C. Raising the mortalility rate
D. Minimizing the rate of competition

Question 210:

• JAMB 2004

The soil type that will be most difficult to plough in a wet season is one that is

A. Loamy
B. Clayey
C. Sandy
D. Silty