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Question

Which of the following can act as a barrier to cause geographical isolation?

A
Seas, Rivers, Mountains
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B
Only industries
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C
Rivers, Human Beings, Animals
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D
Only Mountains
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Solution

The correct option is A Seas, Rivers, Mountains
Geographic isolation occurs when organisms are separated from exchanging genetic material with other organisms of the same species. Few examples of geographical features that can cause isolation include seas, rivers, mountains, etc. These isolate the populations from mating with each other and over time both populations develop into different species. Look at the diagram below that illustrates such a scenario.

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