A food chain is a model that represents how energy and matter are transferred through an ecosystem.

Question

Typically, a food chain has five or fewer links because
A.
there are only three categories of organism—producers, consumers, and decomposers.
B.
no organism exists that eats more than five types of food.
C.
humans are the top predators and are always the fifth link.
D.
the amount of energy available decreases with the addition of each link.

Answer 1

D. the amount of energy available decreases with the addition of each link.