.explain how speciation occurs
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Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.
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speciation occurs due to many reasons
1 genetic drift - it is a sudden change in the frequency of genes
2 geographical factors such as mountain forest sea etc.
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