Domains of life
Bacteria and Archaea are both prokaryotes, but differ enough to be placed in separate domains. An ancestor of modern Archaea is believed to have given rise to Eukarya, the third domain of life. Archaeal and bacterial phyla are shown; the evolutionary relationship between these phyla is still open to debate.
Source
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"OpenStax College, Structure of Prokaryotes. October 16, 2013."
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OpenStax CNX
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