| Zoomastigophorasida | A class of flagellates (superclass Mastigophora) within the phylum Sarcomastigophora (flagellate and ameboid protozoans), of animal-like as opposed to plantlike characteristics. Chromatophores are absent; one to many flagella are found, although they may be absent in ameboid forms; sexuality is known in some groups. It includes many human parasites such as the trypanosomes and trichomonads, as well as a number of other parasitic and symbiotic forms. Synonym: Zoomastigina, Zoomastigophorasida. Origin: zoo-+ G. Mastix, whip, + phoros, bearing (05 Mar 2000) |
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