Does geographical isolation of individuals of a species lead to formation of a new species? Provide a suitable explanation.
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yes , geographical isolation is responsible for formation of new species as due to geographical isolation checks the reproduction of two groups of same species and thus a time comes when they are unable to reproduce which causes a formation of new species.
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Yes, geographical isolation gradually leads to genetic drift. This may impose limitations to sexual reproduction of the separated population. Slowly the separated individuals will reproduce among themselves and generate new variations. Continuous accumulation of those variations through a few generations may ultimately lead to the formation of a new species.
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