What happens when organisms populate a new area and are isolated geographically from other populations of the same species?

The geographically isolated population will acquire genetic differences that eventually will lead to its speciation

Explanation:

Geographic isolation is a biological process produced by the physical separation between organisms of the same species, which may be caused by different types of geographical barriers such as, among others, mountains, earthquakes, rivers, etc. Geographic Isolation produces genetic differences between the separated groups. Over time, these genetic differences will lead to the reproductive isolation of the new population, thereby leading to the formation of a new species in the course of evolution, in a mechanism referred to as speciation.

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