1. KEY CONCEPT Kingdom Protista is the most diverse of all the kingdoms.

2. Protists can be animal-like, plantlike, or funguslike.
Protists are eukaryotes that are not animals, plants, or fungi.

3. Animal-like protists consume other organisms.
heterotrophs
single-celled

4. Plantlike protists are photosynthetic.
single-celled, colonial, or multicellular
no roots, stems, or leaves

5. Funguslike protists decompose dead organisms.
heterotrophs
can move, whereas fungi cannot

6. Protists are difficult to classify.
Protista is one kingdom in the domain Eukarya.

7. Protist classification will likely change.
Some protists are not closely related.
Molecular evidence supports reclassification.