Question

Food chains generally do not exceed above 3, 4 trophic levels because.......

(A) There are limited number of organisms in an ecosystem 

(B) Larger food chains increase complications of food web 

(C) A producer cannot be eaten by more than two herbivores 

(D) Transfer of energy from one trophic level to other is associated with energy loss

Answer 1

Correct option  (D) Transfer of energy from one trophic level to other is associated with energy loss

Explanation:

The quantum of available energy in a food chain successively gets decreased at each trophic level as a result of energy loss. This limits the number of trophic levels in a food chain.