CBSE Class 12-science Answered
Why is the length of a food chain in an ecosystem
generally limited to 3 to 4 trophic levels?
Asked by Topperlearning User | 13 Jun, 2014, 02:28: PM
Expert Answer
The amount of energy flow decreases with successive trophic levels as only 10% of energy is transferred from one trophic level to the other. The energy is lost in the form of respiration and other vital activities to maintain life. If more trophic levels are present, then the residual energy will be limited and decreases to such an extent that it cannot further support any trophic level by the flow of energy.
Answered by | 13 Jun, 2014, 04:28: PM
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