Question

the speciation occures in demes ​

Answer 1

Answer:

Speciation could occur at the level of demes. When a deme gets geographically isolated from other demes of the same species, gene-flow between these demes will stop which could lead to speciation after a long time. This is called allopatric speciation and is generally a slow process.

Explanation:

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Answer 2

Answer:

Speciation could occur at the level of demes. When a deme gets geographically isolated from other demes of the same species, gene-flow between these demes will stop which could lead to speciation after a long time. This is called allopatric speciation and is generally a slow process.

Explanation:

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