What are primary consumers?

herbivores

Explanation:

they eat only primary producers, such as plants and algae

Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else.

Explanation:

For example, a grasshopper living in the Everglades is a primary consumer.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.