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principal #1 Genetic variation: when a white population of mice moved to a volcano covered black rock land a mutation appeared and one single mouse appeared
principal#2 overpopulation and selective pressures: the mice with the white fur are more easier to spot but the mice with the black fur are harder to find by predators
principal #3 differential survival and reproduction: due to the white mice being more visible they were hunted by hawks and owls more that the mice with black fur. The mice with black fur survived longer than the white furred mice so they were able to reproduce and pass on that trait to their offsprings
principal #4 changes in the gene pool: every generation to come will result in an increase of black fur mice and a decrease in the white fur mice
BY: STEPHANIE FUENTES
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