Most of the energy input in a food chain is
A)in the form of heat
B)converted to biomass
C)recycled as it reaches the chain's end
D)degraded to low-quality heat
E)converted to carbon dioxide

Question

Quizplus · Accepted Answer

As energy flows through a food chain or food web, some of it is always lost as heat due to the second law of thermodynamics. This means that the usable energy available to the next trophic level in the chain decreases. The remaining energy is degraded to low-quality heat or converted into other forms, such as waste products or movement. So, most of the energy input in a food chain is degraded to low-quality heat.

Most of the Energy Input in a Food Chain Is