Changes

Microevolution, broadly defined, is the inevitable small-scale changes in [[allele]] frequencies in a population within the same species.  Under this broad definition, this change in overall allele frequencies occurs with every birth or death of a member of the species.

Microevolution, broadly defined, is the inevitable small-scale changes in [[allele]] frequencies in a population within the same species.  Under this broad definition, this change in overall allele frequencies occurs with every birth or death of a member of the species.

Microevolution, narrowly defined, is the unproven theory that [[natural selection]] can, over time, transform an [[organism]] into a more specialized form within the same species.{{fact}} Lack of evidence for [[natural selection]] has led most scientists to use the broad definition above rather than a definition based on [[natural selection]].{{fact}}

Microevolution, narrowly defined, is the unproven theory that [[natural selection]] can, over time, transform an [[organism]] into a more specialized form within the same species. <ref>Evolutionists express their theory of "microevolutionary theory that natural selection should optimize the existing genetic variation in a population to maximize reproductive success." http://www.talkorigins.org/faqs/faq-intro-to-biology.html</ref> Lack of evidence for [[natural selection]] has led most scientists to use the broad definition above rather than a definition based on [[natural selection]].<ref>Darwin defined evolution in terms of natural selection.  Today, for want of evidence of [[natural selection]], scientists define evolution as "a change in the gene pool."  ''Id.''</ref>