ECOLOGY - Jamb Biology Past Questions and Answers

Question 26:

• JAMB 1981

Choose the sequence which represents the correct order of organisms in a food chain.

A. Grass, snake, toad, grasshopper, hawk
B. Grass, grasshopper, toad, snake, hawk
C. Grass, grasshopper, snake, toad, hawk
D. Grass, snake, grasshopper, toad, hawk
E. Grass, toad, snake, grasshopper, hawk

Question 27:

• JAMB 1981

Which of the following statement is NOT true of symbiosis?

A. Symbionts must be living
B. It is an association of 'give and take'
C. The association may involve two plants
D. Association between two similar species
E. Symbionts derive mutual benefit

Question 28:

• JAMB 1981

A surprising fact about sickle cell disease is that it

A. Affects only black people
B. Kills the patient
C. Is hereditary
D. Affects blood cells
E. Weakens the patient

Question 29:

• JAMB 1981

Nitrification means

A. Conversion of nitrates to nitrogen
B. Fixing nitrogen into plants
C. Conversion of nitrates to nitrites
D. Changing of ammonia to nitrities, then nitrates
E. Nitrogen cycle

Question 30:

• JAMB 1981

An instrument used in measuring the speed of wind is

A. A barometer
B. A wind gauge
C. A wind vane
D. An anemometer
E. A hydrometer