Which best describes evolutionary theory?
History · High School · Mon Jan 18 2021
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Evolutionary theory is best described as the scientific explanation for the diversity of life on Earth, proposing that all living organisms have descended from a common ancestor through a process called natural selection over a long period of time. This theory is primarily associated with Charles Darwin, who articulated it in his 1859 book "On the Origin of Species." According to Darwin, the mechanism that drives evolution is natural selection, which means that organisms with traits better suited to their environment are more likely to survive and reproduce. Over many generations, these advantageous traits become more common within a population, leading to the gradual change of species.