Darwin defined it as "preservation of favorable variations and the rejection of injurious variations"
... can be 
defined in words, and when it is not confined to a single peculiarity only, ... "This 
preservation of favorable variations and the rejection of injurious variations, I call
... [DOC] [TLE] Origin of The Species - Things Revealed [PAR] When considering what might constitute a definition of species Darwin ... 
preservation of favorable variations and the rejection of injurious variations" (
Origin, p. [DOC] [TLE] Fall 2009 - Dialogues with Darwin: An Exhibition of Historical ... [PAR] Sep 10, 2009 ... 459) Darwin often used the word perfect to mean that an organism is .... Darwin 
defined natural selection as the preservation of favorable... [DOC] [TLE] A cladistics and Linnaean exploration into the Darwinian selection of ... [PAR] Jun 30, 2016 ... Darwin argues that it is never straightforward to ascertain whether two forms 
should be defined as different Varieties of a Species or simply be... [DOC] [TLE] Julie Phillips [PAR] Darwin defines natural selection as the preservation of favorable variations 
and the rejection of injurious variations (Holmes, 1948).