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Kingdom (biology) - Facts, Information, and Encyclopedia Reference article |
 | | However, it has not become widely used because of uncertainty over the monophyly of the latter two kingdoms. |
| | In 1990, Woese proposed that the Eubacteria, Archaebacteria, and Eukaryota represent three primary lines of descent and accordingly he promoted them to domains, renaming them Bacteria, Archaea, and Eucarya. |
| | This three-domain system has received notable criticism but has generally displaced the older two-empire system as a way of organizing kingdoms together. |
| www.startsurfing.com /encyclopedia/k/i/n/Kingdom_(biology).html (550 words) |
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