What restricts the length of a food chain?
1.
Energy losses between the trophic levels
2.
3.
4.
A greater biomass at the higher trophic levels
The number of species in the food web
The consumption of waste by detritivores



Answer :

Final answer:

Energy loss between trophic levels limits food chain length due to the second law of thermodynamics.


Explanation:

One major factor that limits the length of food chains is energy. Energy is lost as heat between each trophic level due to the second law of thermodynamics. After multiple trophic energy transfers, the remaining energy may not be sufficient to support higher trophic levels due to these losses.


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