Which of the following statements is incorrect?

A Energy content gradually decreases from first to fourth trophic level
B Biomass decreases from first to fourth trophic level
C Energy content gradually increases from first to fourth trophic level
D Number of individuals decreases from first trophic level to fourth trophic level

Verified Solution

Answer & Solution

Correct Answer

(C) Energy content gradually increases from first to fourth trophic level

Step-by-step Solution

Detailed explanation

Energy content does not remain trapped permanently in any organism. It is passed on to various trophic levels in food chain. Hence, energy content gradually decreases from first \(\left(T_{1}\right)\) to fourth \(\left(T_{4}\right)\) trophic level by following ten percent law proposed by Lindemann.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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