Microevolution includes

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Microevolution refers to small-scale genetic changes that occur within a single population over a short period of time. Genetic drift is one mechanism of microevolution that can cause random changes in the genetic makeup of a population. The other options, speciation, key innovation, and polyploidy, are mechanisms of macroevolution and involve larger-scale changes that occur over longer periods of time and can result in the creation of new species or major evolutionary transitions.

Microevolution Includes