Concept:A food web is a network of interconnected food chains, not a single linear feeding path.
Explanation:In an ecosystem, feeding relationships are seldom simple.
A single food chain shows only one linear route, such as grass feeding a goat, and then the goat feeding a man.
Most organisms, however, eat different types of food and are eaten by different predators.
Therefore, one animal may belong to several food chains at the same time.
When these overlapping food chains join together, they form a complex food web.
This sharing of organisms among multiple chains is the main reason food webs are complex.
Answer:D. some animals form part of several food chains