Question

what are the primary consumers of an ecosystem also known as? carnivores omnivores herbivores

Explanation:

In an ecosystem, primary consumers are organisms that eat producers (plants). Herbivores feed on plants, so they are primary consumers. Carnivores eat other animals (secondary or higher consumers), and omnivores eat both plants and animals (can be primary or other levels but primary consumers are mainly herbivores here).

Answer:

C. herbivores (assuming the third option is labeled C, with the text "herbivores")