Reference > The New Dictionary of Cultural Literacy > 21. Life Sciences
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  The New Dictionary of Cultural Literacy, Third Edition.  2002.
 
protozoa
 
 
(proh-tuh-ZOH-uh) Single-celled animals, such as amoebas, that are the most primitive form of animal life. In modern biology, they are classified in the kingdom of Protoctista rather than in the animal kingdom. (See Linnean classification.)  1
‡ Some protozoa are parasites and may be pathogenic, causing diseases such as malaria and dysentery.  2
 
 
The New Dictionary of Cultural Literacy, Third Edition. Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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