The Difference Between a Food Chain and a Food Web

The difference between a food chain and a food web is that ________________.

A) a food web includes only a single line of species consuming other organisms among trophic levels
B) a food chain always shows how much energy is passed from one organism to the next
C) producers are the first species in a food web,while secondary consumers begin a food chain
D) a food web shows interactions between all the species of a community,instead of just a single line of energy transfer among trophic levels
E) There is no difference between a food chain and a food web.