How are two different species most likely to evolve from one ancestral species? (A) sympatrically, by a point mutation affecting morphology or behavior (B) sympatrically, due to extensive inbreeding (C) allopatrically, due to extensive inbreeding (D) allopatrically, after the ancestral species has split into two populations



Answer :

How is it most likely that two separate species will diverge from a single ancestral species - allopatrically, after the ancestral species has split into two populations,

Allopatrically

The two primary ideas that are frequently used to classify allopatric speciation are vicariance and peripatric. The two models differ from one another in terms of population densities and geographic isolation mechanisms. Peripatric speciation, a particular sort of allopatric speciation, is when a species disperses and isolates itself on an oceanic island, for example. Speciation can also result from other isolating mechanisms, such as population dispersion that results in emigration.

In allopatric speciation, creatures of an ancestor species develop into two or more descendant species following a period of physical isolation brought on by a geographic barrier, such as a mountain range, rockslide, or river. Populations can be divided by obstacles like lava flows by altering the geography.

Therefore, the correct option is D
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