Answer:
As the diagram for the food web is not given, lets try to understand the different consumers in a food web generally.
Explanation:
Primary consumer: Primary consumers are organisms which feed on the autotrophs. Autotrophs have the ability to make their own food. Primary consumers feed on plants generally. For example, a giraffe feeding on the leaves of a tree.
Secondary consumers: Secondary consumers are organisms which feed on primary consumers. For example, a rat feeding on a grasshopper.
Tertiary consumers: Tertiary consumers are organisms which feed on secondary consumers.
