Refer to animation: speciation by vicariance. vicariance is defined as: variation in allele frequencies within a population of organisms. when a geographic barrier arises that isolates two populations. migration to a distant, isolated island resulting in isolated populations. variation in frequency of mutations among different genes in a population.

The rocky mountain system stretching from canada to new mexico is a string of mountains running along the wester united states. what factors would mostly cause this arrangement of mountains? intense pressure undemeath a tectonie plate that could not breakthrough the rock subduction of a tectonic plate, which pushed up a neighboring plate into mountains two plates located at a diverging boundary with a third plate rising between them two plates that melted into molten rock, which later cooled into the shape of mountains

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Where is the temperate deciduous forest located