Biology, 23.07.2019 15:00 love123jones

Population of ground squirrels lived in a valley. the population was split in half when a river course changed, dividing the population in two separate groups. over many generations, the two groups changes so drastically, that an individual from group a cannot mate and produce offspring with an individual from group b. the result of this reproductive isolation is known

Population of ground squirrels lived in a valley. the population was split in half when a river cour

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