The Mutualism reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Mutualism

Mutualism is a interaction in which both organisms in a close relationship derive some degree of benefit. Mutualism is usually temporary or not obligatory.

See also: Parasitism, Symbiosis, Rusticle

Mutualism is the form of Anarchism described by Pierre-Joseph Proudhon.

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