Question

What is the relation with ecosystem of food chain

Answer 1

The interdependence of plant and animal(flora and fauna) which are the parts of echo system is called food chains.

Answer 2

There are a great many feeding relationship in any ecosystem, but energy always flow from primary producers. to various consumers .
These feeding relationships are represented by food chains and food webs.
A food chain is a sequence in which organisms transfer energy by eating and being eaten.