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CBSE Class 10 Answered

What is Organic Evolution?
Asked by padminik | 24 Mar, 2009, 04:50: PM
Expert Answer

It is the modification of living organisms during their descent, generation by generation, from common ancestors. Organic, or biological, evolution is to be distinguished from other phenomena to which the term evolution is often applied, such as chemical evolution, cultural evolution, or the origin of life from nonliving matter. Organic evolution includes two major processes: anagenesis, the alteration of the genetic properties of a single lineage over time; and cladogenesis, or branching, whereby a single lineage splits into two or more distinct lineages that continue to change anagenetically.

Answered by | 25 Mar, 2009, 11:12: AM
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