Keyword Analysis & Research: theory of evolution by natural selection
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Darwin, evolution, & natural selection (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/natural-selection/natural-selection-ap/a/darwin-evolution-natural-selection
WebKey points: Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection. Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor. The mechanism that Darwin proposed for evolution is natural selection.
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Natural Selection - Understanding Evolution
https://evolution.berkeley.edu/evolution-101/mechanisms-the-processes-of-evolution/natural-selection/
WebNatural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift. Darwin’s grand idea of evolution by natural selection is relatively simple but often misunderstood. To see how it works, imagine a population of beetles: There is variation in traits.
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Natural selection - Wikipedia
https://en.wikipedia.org/wiki/Natural_selection
WebIn 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
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Natural Selection - National Geographic Society
https://www.nationalgeographic.org/encyclopedia/natural-selection/
WebOct 19, 2023 · Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth. Darwin chose the name natural selection to contrast with “artificial selection,” or selective breeding that is controlled by ...
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What is natural selection? | Natural History Museum
https://www.nhm.ac.uk/discover/what-is-natural-selection.html
WebNatural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time. Natural selection is one of the ways to account for the millions of species that have lived on Earth.
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Introducing Darwin and natural selection - Khan Academy
https://www.khanacademy.org/partner-content/amnh/human-evolutio/x1dd6613c:evolution-by-natural-selection/a/introducing-darwin-and-natural-selection
WebDarwin's theory of evolution by natural selection underlies all modern biology. It enables us to decipher our genes and fight viruses, as well as to understand Earth's fossil record and rich biodiversity.
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Evolution - Natural Selection, Adaptation, Genetics | Britannica
https://www.britannica.com/science/evolution-scientific-theory/The-science-of-evolution
WebEvolution - Natural Selection, Adaptation, Genetics: The central argument of Darwin’s theory of evolution starts with the existence of hereditary variation. Experience with animal and plant breeding had demonstrated to Darwin that variations can be developed that are “useful to man.”
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Charles Darwin’s theory of evolution by natural selection
https://www.britannica.com/summary/Charles-Darwin
WebThough Darwin’s ideas were modified by later developments in genetics and molecular biology, his work remains central to modern evolutionary theory. His many other important works included Variation in Animals and Plants Under Domestication (1868) and The Descent of Man…
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Evolution and natural selection review (article) | Khan Academy
https://www.khanacademy.org/science/high-school-biology/hs-evolution/hs-evolution-and-natural-selection/a/hs-evolution-and-natural-selection-review
WebCharles Darwin developed a theory of evolution to explain the unity and diversity of life, based on the idea of shared common ancestors. Natural selection. Darwin's theory was based on the mechanism of natural selection, which explains how populations can evolve in such a way that they become better suited to their environments over time.
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Natural selection | Definition & Processes | Britannica
https://www.britannica.com/science/natural-selection
WebApr 12, 2024 · In natural selection, those variations in the genotype (the entire complex of genes inherited from both parents) that increase an organism’s chances of survival and procreation are preserved and multiplied from generation to generation at the expense of less advantageous variations. Evolution often occurs as a consequence of …
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