ECOLOGY - Jamb Biology Past Questions and Answers

Question 16:

• JAMB 1979

Grasses grasshopper lizard snakes hawks. In the food chain, the organism which are the least in number are

A. Grasses
B. Grasshopper
C. Lizards
D. Snakes
E. Hawks

Question 17:

• JAMB 1979

Which of these is not true? grass in the above food chain

A. Trap all the sunlight
B. Trap a small percent of the sun energy
C. Are primary producers
D. Are eaten by primary consumers
E. Contains chlorophyll

Question 18:

• JAMB 1980

A student trying to find out the order in which organisms appear on a cleared plot is studying one of the following

A. Ecosystem
B. Food chain
C. Food web
D. Succession
E. Community

Question 19:

• JAMB 1980

An organism X lives entirely on the waste products in another organism Y. In this association X is a

A. Symbiont
B. Commensal
C. Saprophyte
D. Parasite
E. Epiphyte

Question 20:

• JAMB 1980

if three 30 cm lengths of glass tubes are tightly packed with clay, sand and loamy soils respectively and then stood in a beaker of water for one week, the level of water will be

A. Lowest in the tube with clay
B. The same in all tubes
C. Lowest in the tube with loamy soil
D. Highest in the tube with sandy soil
E. Lowest in the tube with sandy soil