10-12-2020
Biology

contestada

When the Grand Canyon formed dividing populations of organisms in the area, why did speciation occur in
squirrels but not in birds?

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Aaryan7009 Aaryan7009

10-12-2020

Answer:

thank me

Explanation:

As the canyon deepened, it acted as geographic barrier to squirrel populations on either side. Two squirrel species evolved as a result of allopatric speciation. Eventually, the canyon became too deep for the squirrels to cross and a subgroup of squirrels became isolated on each side.

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