Question

In an ecosystem

• A. Cycling of energy and nutrients is a coupled process.
• B. Cycling of energy is an independent process.
• C. Movement of energy is unidirectional.
• D. Movement of energy is bidirectional.

Answer 1

The correct option is C Movement of energy is unidirectional.

The flow of energy is unidirectional. The energy that is captured by the autotrophs does not revert back to the solar input and the energy which passes to the herbivores does not come back to autotrophs. As it moves progressively through the various trophic levels it is no longer available to the previous level.

So, the correct option is C.