Here's why:
* Primary consumers eat only plants (herbivores). Raccoons eat plants, so they fit this description.
* Secondary consumers eat primary consumers (carnivores). Raccoons eat insects, small mammals, and amphibians, making them secondary consumers too.
* Tertiary consumers eat secondary consumers (top predators). Raccoons can be prey to larger animals, but they also prey on other animals, so they fit this description as well.
Therefore, a raccoon can be considered a combination of primary, secondary, and tertiary consumer depending on their specific diet and the ecosystem they live in.