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Microevolution is the change in allele frequencies that occurs over time within a population. [1] This change is due to four different processes: mutation, selection (natural and artificial), gene flow and genetic drift. This change happens over a relatively short (in evolutionary terms) amount of time compared to the changes termed macroevolution.
On February 19, 2008, the Florida State Board of Education adopted new science standards in a 4–3 vote. The new science curriculum standards explicitly require the teaching of the "scientific theory of evolution," [46] whereas the previous standards only referenced evolution using the words "change over time." [47]
It defines evolution as the change in allelic frequencies within a population caused by genetic drift, gene flow between sub populations, and natural selection. Natural selection is emphasised as the most important mechanism of evolution; large changes are the result of the gradual accumulation of small changes over long periods of time. [39] [40]
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
Conceptual change is the process whereby concepts and relationships between them change over the course of an individual person's lifetime or over the course of history. . Research in four different fields – cognitive psychology, cognitive developmental psychology, science education, and history and philosophy of science - has sought to understand this pro
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Professor of biology Jerry Coyne sums up biological evolution succinctly: [3]. Life on Earth evolved gradually beginning with one primitive species – perhaps a self-replicating molecule – that lived more than 3.5 billion years ago; it then branched out over time, throwing off many new and diverse species; and the mechanism for most (but not all) of evolutionary change is natural selection.
Cultural evolution is the change of this information over time. [ 2 ] Cultural evolution, historically also known as sociocultural evolution , was originally developed in the 19th century by anthropologists stemming from Charles Darwin 's research on evolution .