Question

eat primary consumers (can be carnivores and omnivores)
top predators
tertiary consumers
secondary consumers
quaternary consumers

Explanation:

In an ecological food chain, primary consumers eat producers. Secondary consumers eat primary consumers. They can be carnivores (eating only animals) or omnivores (eating both plants and animals). Tertiary consumers eat secondary consumers, quaternary consumers eat tertiary consumers, and top - predators are at the very top of the food chain with no natural predators.

Answer:

Secondary Consumers