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how genetic drift,gene flow, natural selection, and mutations affect evolution

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evolutionary effects

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43098982genetic driftChance events that may cause allele frequencies fo change unpredictably from one generation to another
43098983gene flowthe transfer of alleles from one population to another, maybe causing genetic variation
43098984natural selectionindividuals in a population exhibit variations in their heritable traits, and those traits that are better suited for the environment tend to produce more offsprings
43098985mutationscan cause a change in the phenotype and therefore produce an individual that is better suited for the environment
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