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Protists Kingdom

Protists Kingdom. Habitat -Most protists are aquatic (but some in soil). - Plankton are organisms that drift or swim near the surface of the water. Phytoplankton are responsible for half of the world’s photosynthesis and O 2 production. Characteristics. Eukaryote

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Protists Kingdom

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  1. Protists Kingdom Habitat -Most protists are aquatic (but some in soil). -Plankton are organisms that drift or swim near the surface of the water. Phytoplankton are responsible for half of the world’s photosynthesis and O2 production.

  2. Characteristics • Eukaryote • Unicellular, colonial, multicellular • Autotrophic to heterotrophic, some are both • Three main groups: • Plant-like: Algae (producers, photosynthic) & seaweed • Animal-like: Protozoa (consumers) • Fungal-like: slime-molds (consumers)

  3. Algae • Plant-like - phytoplankton/ photosynthesis • Classified by type of pigment • Diatoms: shelled algae • Chlorophyta: green algae • Euglenophyta: euglena • Dinoflagellata: red tide • Chrysophyta: golden algae • Phaeophyta: brown algae • Rhodophyta: red algae

  4. ChlorophytaGreen algae • Unicellular to multicellular • Some seaweed

  5. Euglenophyta

  6. Euglenophyta • Unicellular • Both photosynthetic & heterotrophic • Moves by a flagella • Has an eyespot (moves toward light)

  7. ChlorphytaGreen Algae • 8000 species • 9o% freshwater • 10% seaweeds (tropical) • Ancestor of land plants (spirogyra)

  8. Diatoms • Unicellular • Covered with a silica shell

  9. Water filters

  10. Diatoms • Diatomite is used as an insulating material against both heat and sound, • in making dynamite and other explosives, • for filters, • abrasives, • Diatoms have deposited most of the earth’s limestone • petroleum is of diatom origin.

  11. Dinoflagellates • dinoflagellates are important constituents of plankton, and as such are primary food sources in warmer oceans. Many forms are phosphorescent

  12. Red Tide (Fire Algae)

  13. bioluminiscence

  14. RhodaphytaRed algae • role in building reefs Multicellular Deep water Seaweed Human food source

  15. PhaeophytaBrown algae • Multicellular Sargassum & Kelp

  16. Protozoaanimal-like • Unicellular • Classified by movement • Heterotrophs • 30,000 species

  17. flagella

  18. Ciliates

  19. Amoeboid

  20. Brain-Eating Amoeba Thrives in Warm, Fresh Water The dangerous amoeba has killed three people this summer.

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