evolution
change in gene frequencies of a population over time
Evolution is the scientific theory that explains how species change and adapt over time through the mechanism of natural selection. It is based on the observation that offspring inherit traits from their parents and that some of these traits provide an advantage in surviving and reproducing in a particular environment. Individuals with beneficial traits are more likely to survive and pass on those traits to their offspring, while individuals with less desirable traits are less likely to survive.
The theory of evolution was first proposed by Charles Darwin in his 1859 book “On the Origin of Species” and has since been supported by a vast amount of scientific evidence, including fossil records, DNA evidence, and observations of adaptation in both living and extinct species.
One of the most important implications of evolution is that all living organisms are connected through a common ancestry. This means that humans share a common ancestor with all other living organisms on Earth, including animals, plants, and bacteria.
In summary, evolution is a fundamental concept in biology that explains how species change over time through natural selection and provides a common ancestral link between all living organisms.
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