What do the arrows on a food web or food chain indicate?

The flow of energy

Explanation:

Arrows on a food chain, or food web, represent the flow of energy. The placement of the arrows in a food chain or food web is very important. The arrows always show the direction of the energy as it is transferred from one organism to another. The flow of energy can also be represented within an energy pyramid.

answer; i believe the correct answer is (replication is not conservative);