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Apicomplexa

Definition

noun

A large group of protozoans that are characterized by having a special organelle called an apical complex. Most of them are single-celled, parasitic, and spore-forming.


Supplement

This group includes organisms such as coccidian, gregarines, piroplasm, haemogregarines, and malarias. The first apicomplexan protozoon observed was the Eimeria stiedai oocyst in the gall bladder of a rabbit by Anton van Leeuwenhoek in 1674.

Apicomplexans are sometimes taken as synonymous with sporozoans. At other times sporozoans are regarded as only a subset of the apicomplexans.


See also: apical complex, Sprozoan

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Need help in Micro!

... Protazoan. 11. Identify and explain the inportance of the following: a) trophozoite b) schizogony c) conjugation d) encystment 12. Descibe the Apicomplexa life cycle, then identify an apicomplexan infection (disease) and describe the entire life cycle. (do not use malaria) 13. Compare and contrast ...

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Thu Feb 09, 2012 7:36 pm
 
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Sun Nov 13, 2005 6:30 pm
 
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