EVERYDAY SCIENCE

Detailed explanation-1: -The flow of energy in the ecosystem is 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.

Detailed explanation-2: -Final answer: Flow of energy in an ecosystem is always unidirectional.

Detailed explanation-3: -The energy harnessed by the primary producers, flows from producers to consumers to decomposers and at each trophic level some energy dissipates as heat. Once the energy is lost as heat, it cannot be recycled. Hence, we say that energy flow in an ecosystem is unidirectional.

Detailed explanation-4: -Flow of energy is unidirectional, plants absorb energy from the sun, convert it into food, herbivores eat plants and energy transfer takes place. Carnivores eat herbivores and so on, the energy gets transferred, but the vice versa does not take place.

Detailed explanation-5: -Energy always flows in one direction in an ecosystem, from a lower trophic level to a higher trophic level.