Biology · Ecology and Environment
Why do food chains in an ecosystem usually have only three or four trophic levels?
- 1Because of the progressive loss of energy at each successive stage✓
- 2Due to the reversal of direction in energy flow
- 3Because the complexity increases beyond manageable limits
- 4Due to the progressive increase in energy availability at higher levels
Correct answer
Because of the progressive loss of energy at each successive stage
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