Question

which of the following best describes a food web?
a a representation of energy flow in one direction
b a single linear pathway of energy flow
c a list of all species in an ecosystem
d a diagram showing only producers and consumers
e a complex network of interconnected food chains

Explanation:

A food web is a complex network formed by multiple interconnected food chains. It shows the feeding relationships among various organisms in an ecosystem.

• Option a: While energy flow in a food web is unidirectional (from producers to consumers), this description is too general and not specific to a food web. A food chain also has unidirectional energy flow.
• Option b: A single linear pathway of energy flow describes a food chain, not a food web.
• Option c: A food web is not just a list of species. It shows the feeding relationships between them.
• Option d: A food web includes decomposers in addition to producers and consumers.
• Option e: This is the correct definition as a food web is made up of many interconnected food chains.

Answer:

E. A complex network of interconnected food chains