In a study of red spruce trees and black spruce trees, scientists found that the

Question

In a study of red spruce trees and black spruce trees, scientists found that the red spruce was living in a smaller geographic area and had much less genetic variation than the black spruce. They proposed that the red spruce might have arisen from a southern population of black spruce, which became geographically isolated from other black spruce populations at some point during the Pleistocene glaciations. What is this an example of? Oa sympatric speciation with the ring species model b.allopatric speciation with the peripheral isolate model c.allopatric speciation with the vicariance model Od.sympatric speciation

Explanation / Answer

Answer - B . Allopatric speciation with peripheral isolate model

Peripheral isolate model geographically isolated from one another differ in size, with one large population and one or several smaller population.

vicariance model - Geographic isolated from one another split into two relatively large groups. Populations may be similar.

Sympatric speciation - not by geogeaphic isolation.

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