Question

Does geographical isolation of individuals of a species lead to formation of new species?
provide a suitable explanation.​

Answer 1

Answer:

            Yes, geographical isolation of individuals of a species leads to speciation. ... Populations of a species get separated into two groups by accumulation of genetic variations in them

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Answer 2

Answer:

Reproduction barrier such as river (geographical isolation) between the sub population leading to:

(a)Genetic drift or random changes in the gene frequency by chance alone e.g. selection of red or blue beetles instead of green in presence of crows.

(b)Natural selection or selection of the fittest by nature itself eg. Selection of green beetles instead of red ones in the presence of crows.