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Definition of Archaea

Archaea: A unique group of microorganisms that are called bacteria (Archaeobacteria) but are genetically and metabolically different from all other known bacteria. They appear to be living fossils, the survivors of an ancient group of organisms that bridged the gap in evolution between bacteria and multicellular organisms (eukaryotes).

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Heart Disease: Causes of a Heart Attack See Slideshow
Reviewed on 12/4/2018
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