1. Protista

2. In General Usually unicellular
Reproduction: Some asexual, some sexual, some both
Kingdom for life that doesn’t fit in animals, plant or fungi kingdom
Mostly aquatic life
3 main categories

3. Animal-Like Protista AKA: Protozoans Aquatic, unicellular
Heterotrophic: pathogens, parasites, predators
Pseudopods : have pseudopodia (false- feet)
Engulf by phagocytosis
Amoebas, Foraminifera
Flagellates: have flagella
Zooflagellates
Ciliates: have cilia
Paramecia

4. Amoeba

5. Flagellate Moving

6. Ciliate Moving

7. Animal-Like Protista & Disease
Phylum Apicomplexa
Malaria: Infected mosquito bites
Fever, vomiting, coma, death
Sleeping sickness: bite of tsetse flies
Coma & death

8. Plantlike Protista AKA: Algae
Most unicellular; No leaves, stems, roots
Perform photosynthesis with chloroplasts
Seaweed, kelp
Euglenoids: use flagella to swim
Animal & plant-like
Dinoflagellates
Most phytoplankton (Basis of aquatic food chains)
Diatoms
Glasslike shells
Provide ~ ½ the O2 on earth

9. Euglena

10. Origins of Multicellularity
Live in 3 arrangements
1) Single-celled
2) Multicellular colonies; independent acting cells
Over time, cells became somewhat specialized
3) Multicellular colonies; specialized cells
Over time, cells dependent on others because of specialization
Beginning of multicellular life???

11. Fungus-like Protista Decomposers: recycle nutrients Moist environments
Mobile at stages of life cycle
Spores can develop cilia
Slime Molds: large (~1 meter) single celled mass of cytoplasm
Fungus & animal-like
Water molds: can be parasitic
Potato blight: disease

12. Cool Slime Mold Video