Biological Diversity BSCI 10110 1 MWRF 1 10 2 00 Dr Mark Kershner Week 10 11 2 Protists phylogeny continued choanoflagellates unicellular bacterivorous colonial heterotrophic near base of marine foodwebs orphans Rhizopoda amoeba unicellular heterotrophic locomotion phagocytosis bacteria choanoflagellates krill baleen whales research associated with global carbon cycles related to choanoflagellates consuming bacteria pseudopodia false feet can form anywhere on cell move in any direction enzymes destroy vacuole result in digestive products other amoeboid protists Actinopodia radiolarians amoeba body encased in a silica shell unicellular heterotrophs marine habitats associated with water column krill food useful in aging geological strata Cliffs of Dover Foraminifera amoeboid protists encased in silica shells shells of polysaccharids used in aging geological strata unicellular heterotrophs marine freshwater extend their pseudopodia through openings in shell for locomotion feeding slime molds plasmodial slime molds huge single celled multinucleate oozing mass heterotrophic dead plants bacteria fungi terrestrial sporangium major reproductive structure bursts spraying spores exceedingly long lived used as a major identification tool cellular slime molds unicellular heterotrophs may form colonies associated with work on the evolution of multicellularity move slowly life cycle are taking slug differentiated amoeboid spores spores come together aggregate individual cells organisms on different roles as this structure forms stage moves sporangiophore cells individual organisms cells taking on different cells
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