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Which would least likely be a cause of natural selection? adaptation evolution overpopulation variation
The correct answer is Evolution.
Natural selection is a process by which organisms better adapted to their existing environment survive and make more copies of them through reproduction.
Evolution is the result and not a cause of natural selection.This is because natural selection brings change in the heritable characteristics of the population over many generations. This leads to evolution.
On the contrary, if there is variation in a population, the best trait will be selected by the nature and it will propagate. Similarly, if there is large number of population, there are more chances of some adaptations becoming desirable over others. So adaptation, overpopulation, and variation are the important factors that cause natural selection.
Thus, evolution is the correct answer.
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