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  • (a) Construct a terrestrial food chain comprising four trophic levels. (b) What will happen if we kill all the organisms in one trophic level ? (c) Calculate the amount of energy available to the organisms at the fourth trophic leve

(a) Construct a terrestrial food chain comprising four trophic levels.

(b) What will happen if we kill all the organisms in one trophic level ?

(c) Calculate the amount of energy available to the organisms at the fourth trophic level if the energy available to the organisms at the second trophic level is 2000\; J.

 

 
 
 
 
 

Answers (1)

a) grass > insect > frog > eagle

b) If we kill all the organisms of one trophic level it will imbalance our ecosystem as every trophic level is interdependent on each other.
For example, in a food chain grass is eaten by a buffalo and buffalo is eaten by a lion. If all the lions in the population were to be removed, the number of buffalo will increase and this will ultimately lead to over-grazing. And then over-grazing can lead to the barren land which will ultimately lead to soil erosion. and we will be out of food again.

c) according to 10% law the amount of energy left is 20J.

Posted by

Safeer PP

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