Question

Which of the following limits the number of trophic levels in a food chain?
(a) insufficient food supply from producer level
(b) decrease in energy at higher trophic levels
(c) increase in the number of organisms at higher trophic levels
(d) accumulation of harmful chemicals at higher trophic levels

Answer 1

Answer:

Decreases in energy at higher trophic levels.

Acc. to 10 percent law the amount of energy decreases in each trophic level and hence the no. of trophic levels in a food chain is limited.

Answer 2

(b) decrease in energy at higher trophic levels.

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