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Dinophyta red tides
Summer, eutrophication, bloom of dinoflagellates, density is 20 million per liter
Large, multicellular organisms with high level of differenciation; holdfast, stipe, air bladders, sieve tubes
Phaeophyta life history
Must have had a sporic life cycle, alternation of generations, few have gametic life cycle
Chlorophyta synapomorphies with plants
Pigments, storage, cellulose cell wall, flagella ultrastructure
Chlorophyta Charophyceae synapomorphies with plants
Asymmetric flagella, phargmoplasts, breakdown of nuclear envelope, sporopollenin
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