System of cortical alveoli membranous sacs in

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System of cortical alveoli – membranous sacs - in Ciliates – flexible pellicle - in Dinoflagellates – armor plates
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binary fission and conjugation (micronucleus) trichocysts * – tiny pointed filaments for defense a. CILIATES Paramecium caudatum * Test with 5% acetic acid
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b. DINO FLAGELLATE S phytoplankton – small photosynthetic organisms photosynthetic, mixotrophic major food source for marine organisms primary producers; replenish atmospheric O 2 red accessory pigment – red tides (toxins) bioluminescent species symbiotic – zooxanthellae in corals Noctiluca scintillans Ceratium
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C. STRAMENOPILES photosynthetic Phaeophyta, Chrysophyta and Diatoms , and heterotrophic Oomycetes (Water Molds) chlorophylls a and c , fucoxanthin (carotenoid) a. DIATOMS (Bacillariophyta) phytoplankton unicellular or colonies (filaments or ribbons, fans, zigzags, or stellate) pennate or centric siliceous skeleton – frustule (composed of 2 valves) Pre-Cambrian rocks valve
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b. BROWN ALGAE multicellular , marine Chl a and fucoxanthin kelp – large seaweeds resemble, but are not true vascular plants Kelp forest Ascophyllum nodosum Sargassum Fucus Ectocarpus Sargassum
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Laminaria air-filled floats (pneumatocysts)
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D.
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  • Fall '07
  • webb,wetzer,?
  • Evolution, chL, a. Ciliates, Apicomplexan Plasmodium falciparum

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