Ur-organism
Encyclopedia : U : UR : URO : Ur-organism
"Ur-organism" is the term loosely given to the hypothetical "first life" species, from which all other life presumably evolved. The term was used first by Charles Darwin, and has been picked up by various subsequent thinkers addressing the same questions of origin of species.
See also
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.