Question

The flow of energy in a food chain is unidirectional .Explain

Answer 1

Answer:loss of energy

Explanation:

The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis. During the transfer of energy through successive trophic levels in an ecosystem, there is a loss of energy all along the path.

Answer 2

Explanation:

In a food chain the energy moves progressively through the various trophic levels and is no longer available to the organisms of the previous trophic level as energy captured by the autotrophs does not revert back to the solar input.

For example: energy which passes to the herbivores does not come back again to autotrophs.