Answer: Energy transfer
Step-by-step explanation:
In a food web all the organisms are connected by the arrows and these arrow represent the food that is eaten by the organism.
A food web can be defined as a complex network of animals in which the organism depends on the each other for their food.
Decomposer are also present everywhere because every living organism die and is probably eaten by them.
The arrows represent the energy transfer from the one organism to another.