Which of the following conditions results in the faster evolution of a population?

Question

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Selection, particularly strong or directional selection, acts on the genetic variation already present in a population and can quickly shift the frequencies of certain traits. Mutation is a source of new genetic variation but typically occurs at a slower rate. Non-random mating and natural disasters may impact population dynamics, but they do not necessarily result in a faster rate of evolution.

Which of the Following Conditions Results in the Faster Evolution