Question

describe the energy flow in an ecosystem

Answer 1

Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level, primary producers (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis. Herbivores—animals that feed solely on plants—make up the second trophic level. Predators that eat herbivores comprise the third trophic level; if larger predators are present, they represent still higher trophic levels. Organisms that feed at several trophic levels (for example, grizzly bears that eat berries and salmon) are classified at the highest of the trophic levels at which they feed. Decomposers, which include bacteria, fungi, molds, worms, and insects, break down wastes and dead organisms and return nutrients to the soil.

Answer 2

In the ecosystem the flow of energy takes place that means it is not created in the ecosystem it is only converted from one form to another in the way autotrophs gain energy from the Sun which is then utilised by the herbivores who eat those plants now the Carnivores who eat those herbivores get the energy and then other carnivores take this energy who eat them but in each case a small amount of energy is lost in the form of heat .So in this way energy is not created but converted.