Evolution
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Revision as of 00:57, 27 February 2009 by Astamoulis (talk | contribs)
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This article provides an overview of the Evolution of populations and the mechanisms that derive it.
What is Evolution?
The theory of evolution explains how populations of organisms have changed over time. Evolution does not refer to changes that occur in an individual within its lifetime but it refers to changes in the characteristics of populations over the generations. These changes, which include modifications in structure, physiology, ecology and behaviour, may be so small that it is difficult to detect them or such great that the population differs from its ancestral population noticeably. Eventually, two populations may diverge to such a degree that we refer to them as different species.
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