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Natural selection, natural selection is natural selection leads to evolution, leads to evolution, evolution a process of, a process of change in population, of change in population over time, over time and evolution occurs, evolution occurs as a result, as a result, as a result of gradual accumulation, gradual accumulation, accumulation of beneficial, of beneficial genetic variations, variations in a population, in a population, in a population, in a population which allows the individual, which allows the, the individual, the individuals with those of, with those without them, those of without them, over the genetic variation, over time, over time, the genetic variations, the genetic variations become more common, more common and in the population, in, in this population basically, in the population leading to the changes of, which leads to the change of characteristics of the population as a whole, leads to the change in the whole population, in the whole population...