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Blitzkrieg is a term used to describe a method of offensive warfare designed to strike a swift, focused blow at an enemy using mobile, maneuverable forces, including armored tanks and air support. Such an attack ideally leads to a quick victory, limiting the loss of soldiers and artillery.
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But mutation combined with one of the other mechanisms of evolution genetic drift natural selection nonrandom mating and gene flow can result in meaningful changes in allele frequencies in a population
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<u>The impact was most severe in the Caribbean, where by 1600 Native American populations on most islands had plummeted by more than 99 percent. Across the Americas, populations fell by 50 percent to 95 percent by 1650.</u>