Question

(a)Why do food chains in an ecosystem do not have more than 4 to 5 trophic levels?
(b)How much energy flows from one trophic level to the next in a food chain?

Answer 1

(a) The loss of energy at each step of food chain is so great that very little usable energy remains after four trophic levels. Hence, food chains generally consist of . only three or four steps.
(b) 10%