Here's why:
* Protists are a diverse group of eukaryotic organisms that are not classified as animals, plants, or fungi. They include a wide variety of single-celled organisms, as well as some multicellular forms.
* Watery Environments: Many protists are found in freshwater, saltwater, and soil. Examples include algae, amoebas, and paramecia.
* Inside the Body of Animals: Some protists are parasites, meaning they live inside the bodies of animals and obtain nutrients from their host. Examples include malaria-causing plasmodium and giardia, which can cause intestinal illness.
While bacteria are also single-celled organisms, they are prokaryotes (lacking a nucleus) and belong to the kingdom Bacteria.