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September 22, 2005
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The Tree of Life is currently divided into three kingdoms, bacteria, archaea and eukaryotes.
By studying genetic characteristics scientists currently divide all living organisms into three kingdoms named bacteria, archaea and eukaryotes when they depict the "Tree of Life."
Credit: Nicolle Rager Fuller, National Science Foundation
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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