Question

What is the unidirectional flow of energy?

Answer 1

Unidirectional flow of energy:

1. The flow of energy across trophic levels is unidirectional.
2. The Sun is the ultimate source of energy.
3. Plants harness sunlight and use it to make food.
4. This energy is transferred to the higher trophic levels but with some loss.
5. But the energy can't be transferred to lower trophic levels as some energy is lost in form of respiratory losses.