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

2. 19.1 Diversity of protists

3. Protists can be animal-like, plantlike, or funguslike.
Protists: Eukaryotes that are not animals, plants, or fungi
members of the Protista Kingdom
single celled or multicellular
microscopic or very large
reproduce asexually and/or sexually

4. Protists can be animal-like, plantlike, or funguslike.
Protist are generally divided into three groups based on how they get their food:
Animal-like (consume other organisms)
Plantlike (make own food)
Funguslike (decompose other organisms)

5. Animal-like protists consume other organisms.
heterotrophs
single-celled
Not animals because animals are multicellular and animal like protist are single-celled

6. Plantlike protists are Make their own food through photosynthesis (autotroph).
single-celled, colonial (live together in colonies), or multicellular (kelp)
Not plants because they have no roots, stems, or leaves

7. Funguslike protists decompose dead organisms.
Heterotrophs.
can move at some point in their life cycle whereas fungi cannot.

9. Protists are difficult to classify.
Four of the six Kingdoms are Eukaryotes
Plant
Animal
Fungus
Protista
Difficult to classify because
Many are only distantly related to each other.
Many are more related to organisms in other kingdoms.

10. Protists are difficult to classify.
Protista is often called the junk drawer of the kingdoms.
Eukaryotes that do not fit into any other kingdom:
Animal like but not quite an animal
Plantlike but not quite a plant
Funguslike but not quite a fungus

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