Answer:
c
Explanation:
its correct on e2020 i did the test
the simplest answer would be it makes a ecosystem more stable. you also have more variety witch helps incase a promblem occurs
A food chain describes how energy and nutrients move through an ecosystem.In the food chain, energy is transferred from one living organism through another in the form of food. There are primary producers, primary consumers, secondary consumers and decomposers- all part of the food chain.
I hope it'll help you...