alleryWhat fraction of energy is transferred to each trophic level from the one below?
ASixty per cent
BTwenty per cent
CTen per cent
DNine per cent
Answer & Solution
Correct answer: C. Ten per cent
1. Energy is lost at every step of a food chain.
2. The loss is large enough to limit how many steps there can be.
3. Only 10 per cent of the energy is transferred to each trophic level from the lower one.
4. That rule restricts the number of trophic levels.
_Source: syllabus Biology, Ch 12 'Ecosystem'_
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