Form of reproductive isolation in which two populations are separated by geographic barriers such as rivers, mountains, or bodies of water, leading to the formation of two separate subspecies.

PATTERNS OF EVOLUTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	Geographic isolation
B	Mutation
C	Sexual selection
D	Speciation

Explanation:

Detailed explanation-1: -The type of speciation that occurs when two original populations of the same species and characteristics get separated from each other due to geographical alterations is called allopatric speciation.

Detailed explanation-2: -Allopatric speciation (1) occurs when a species separates into two separate groups which are isolated from one another. A physical barrier, such as a mountain range or a waterway, makes it impossible for them to breed with one another.

Detailed explanation-3: -Temporal isolation happens when two or more species reproduce at different times.

Detailed explanation-4: -Species are kept distinct from one another by prezygotic and postzygotic barriers. These barriers keep organisms of different species from mating to produce fertile offspring, acting before and after the formation of a zygote, respectively. These barriers maintain the reproductive isolation of species.

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