KINGDOM PROTISTA Phylum: Rhizopoda (amoebas) Reproduction: Binary Fission Habitat/Nutrition: Heterotroph Distinguishing Characteristics: *move using pseudopodia – flexible extentions *most are free living ; some are parasitic (ex: cause amebic dysentery) Phylum: Chlorophyta (green algae, volvox) Rhodophyta (red algae-deep ocean) Phaeophyta (brown algaekelp) Reproduction: Alternation of Generation (cycle between mitosis and meiosis) Habitat/Nutrition: Photosynthetic Distinguishing Characteristics: plant-like; no movement Phylum: Bacillariophyta (diatoms) Reproduction: Asexual; halves separate and regenerate Habitat/Nutrition: Photosynthetic Distinguishing Characteristics: *diatomacious earth, very sharp *shell made of silica *move by gliding Phylum: Dinoflagellata Reproduction: Asexual by mitosis Habitat/Nutrition: Photosynthetic Distinguishing Characteristics: *have two flagella; spin like a top *part of plankton *Associated with “red tides” Phylum: Euglenophyta Reproduction: Asexual by mitosis Habitat/Nutrition: some Photosynthetic & some Heterotrophic Distinguishing Characteristics: *flagella *Difficult to classify (is it a plant or animal?) *Has eyespot that detects light Example: Euglena Phylum: Ciliophora (ciliates) Reproduction: Asexual by mitosis, conjugation Habitat/Nutrition: Heterotrophic Distinguishing Characteristics: *cilia for movement Example: paramecium Phylum: Slime molds Reproduction: Asexual by mitosis Habitat/Nutrition: Heterotrophic Distinguishing Characteristics: *fungus-like *some mobility by ameoboid or flagella Phylum: Apicomplexa (Sporozoans) Reproduction: Asexual and Sexual Habitat/Nutrition: Heterotrophic Distinguishing Characteristics: *nonmotile *parasitic *causes malaria *also cause of toxoplasmosis, cattle tick fever, others EXIT QUIZ 1. Protozoans, algae, and slime molds belong to a group of organisms know as a. protists b. fungi c. lichens d. parasites 2. The fingerlike projections of cytoplasm used by some protozoans for movement and obtaining food are: a. hyphae b. sporangia c. pseudopods d. oral grooves 3. A protist covered with many, short hair-like structures used for movement is a a. parasite b. ciliate c. flagellate d. lichen 4. Which of the following have shells made of silica? a. diatoms b. ciliates c. amoeba d. Paramecium 5. Euglena may obtain food by making it, but Ameoba obtain food a. By fermentation b. by surrounding it c. along an oral groove d. from a host