Here's why:
* Producers are organisms that make their own food through photosynthesis. They use sunlight, water, and carbon dioxide to create sugars (energy). Examples include plants, algae, and some bacteria.
* Sea otters are consumers. They rely on eating other organisms for their energy. Their diet consists mainly of sea urchins, crabs, and shellfish.
Therefore, sea otters fit into the category of secondary consumers in the food web.