Question

why is food chain having two steps most advantageous in terms of energy?

Answer 1

Food chain having two steps are  most advantageous in terms of energy because minimum energy is lost in energy transfer from one level to another. Amount of energy transferred decreases as we move up the food chain. 

Answer 2

Explanation:

Food chain having two steps are most advantageous in terms of energy because minimum energy is lost in energy transfer from one level to another. Amount of energy transferred decreases as we move up the food chain.