Four Factors That Contribute To Microevolution

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Microevolution and Macroevolution Microevolution is a inherited change in a population within the same species but this does not result in a new species. There are four factors that contribute to microevolution: mutation, gene flow, genetic drift, and natural selection. A mutation is generally a random change in the DNA. So for example, if a species of birds start developing shorter bills, then that is a genetic change. Gene flow is when a population migrates to a different area. The birds might want to eventually migrate to south, resulting the population of birds in north to be reduced. Therefore it’s undergoing genetic migration. Genetic drift is a change in the number of a population due to a random incident. If a disease was attacking

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