The process in which populations change over time is evolution, the change in the characteristics of a species over several generations and relies on the process of natural selection.
What is natural selection?
Natural selection is the method through which denizens of living organisms adapt and modify. peoples in a population are inherently variable, meaning that they are all various in some ways.
This divergence means that some people have traits nicely suited to the environment than others.
Thus, The process in which populations change over time is evolution,
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