Respuesta :
Natural selection Consistently improves environmental adaptation in a population * Results from varied levels of reproductive success * Cannot make a deleterious allele more prevalent. Allele frequencies fluctuate randomly due to genetic drift, which is also responsible for the founder and bottleneck effects. Gene flow, on the other hand, is the movement of fertile people or their gametes, which can introduce new alleles into a population's gene pool.
What is evoluton?
Evolution is the change in the heritable traits of a biological population over time. These characteristics are the expressions of genes that are passed from parent to child during reproduction. [1] [2] Variation frequently occurs within a population as a result of genetic recombination and mutation. [3] Evolution occurs when genetic drift and natural selection, particularly sexual selection, act on this diversity to make some features more or less widespread within a population. [4] Because evolutionary factors that determine whether a feature is prevalent or rare in a population are constantly changing, new heritable traits continually appear over time. This process of evolution has resulted in the creation of biodiversity at every level of biological organization.
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