Question

Energy flow in a food chain is unidirectional.Explain and justify the answer.

Answer 1

The energy flow takes place via food chain and food web. Thus, the plants being the producers harness the energy from the sun in the process of photosynthesis. This energy is passed on to the primary consumers in the food chain, followed by the secondary consumers and finally to the tertiary consumers. Thus, the energy flow is unidirectional in nature.

Answer 2

Answer:

the flow of energy in food chain is unidirectional because the sun is the only source of energy for all ecosystems on Earth. then the the energy is captured by the autotrophs does not revert back to the Sun. therefore, in the food chain, the energy moves progressively through various trophic levels.