Answers

2016-03-12T06:35:50+05:30
The formation of new species by evolution or any genetic modification of the previously existing species in a population is called speciation. 

Speciation may take place due to the following factors:

1.Genetic Drift.
2.Reproductive isolation.
3.Genetic isolation.
4. Natural Selection. 

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2016-03-12T15:07:50+05:30
1 Geographical isolation
2 Reproductive isolation
3 Variations
4 genetic drift
5 Natural selection

Short and up to the point
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