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What are the types of protists?

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Quick Answer

The types of protists, which are eukaryotes, that aren't animals, fungi or plants include euglenoza, alevolates, stramenopiles, red algae, slime molds and choanoflagellates. The alevolate group includes ciliates, sporozoans and dinoflagellates. The stramenopile group includes diatoms, golden algae, green algae and water molds.

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Euglenoza, single-celled protists that swim by means of a single flagellum, include Euglena as well as Trypanosoma brucei. Ciliated protists, which move by beating their cilia, include Paramecium, Stentor, Vorticella and Tetrahymena thermophila. Sporozoans include the genus Plasmodium, the bacteria that causes the life-threatening-disease malaria. Dinoflagellates include about 1,000 species of protists and are responsible for the formation of poisonous red tides in marine environments. Diatoms are major producers in aquatic environments and a main base for aquatic food chains. Golden algae includes over 1,000 species of unicellular protists mostly found in freshwater. Brown algae includes rockweeds and kelps mostly found in salt water environments. Some water molds, such as Saprolegnia, are parasites of fish that cause problems for fish hatcheries. Red algae includes approximately 6,000 species of protists that are almost exclusively marine. Slime molds can be either cellular or acellular. Choanoflagellates are singe-celled aquatic protists that have a single flagellum surround by a collar of microvilli.

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