Chapter 24 - Chapter 24 Kingdom Protista"simple...

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Chapter 24 Kingdom Protista “simple” eukaryotes (not plants, animals or fungi) Most reproduce asexually, some sexually via syngamy (fusion of gametes) but no embryo produced Mostly unicellular Most are motile at some point in life cycle (i.e., locomotion) Some form colonies Some are coenocytic (e.g., algae and slime mold) o Multiple nuclei in one mass of cytoplasm A few are multicellular; but no tissues Most protists live in aquatic environments (i.e., ponds, lakes, streams, oceans, body fluids); and damp places Important in the biosphere o Food for other organisms o Photosynthetic protists supply oxygen o Economically important and cause disease Protists (Greek for “first” eukaryotes) Meiosis and mitosis Difference between prokaryotes and eukaryotes Paraphaletic group…not all taxa under a common ancestor are included Note importance to economy and such… Locomotion o Pseudopodia o Flagella o Cilia o A few are nonmotile
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Chapter 24 - Chapter 24 Kingdom Protista"simple...

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