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Protozoa

From: The Columbia Encyclopedia, Sixth Edition | Date: 2008

Protozoa formerly, the name of an animal phylum comprising a large, diverse assortment of microscopic or near-microscopic one-celled heterotrophic organisms ( protozoans ). The term "protozoan" (or the collective plural "protozoa" ) continues to be used informally; the organisms are now more commonly placed in any of five phyla in the kingdom Protista .

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The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press

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