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Natural selection - Wikipedia
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with … See more
Pre-Darwinian theories
Several philosophers of the classical era, including Empedocles and his intellectual successor, the Roman poet Lucretius, expressed the idea … See moreHeritable variation, differential reproduction
Natural variation occurs among the individuals of any … See moreNatural selection can act on any heritable phenotypic trait, and selective pressure can be produced by any aspect of the environment, including sexual selection and competition with members of the same or other species. However, this does not imply that natural … See more
Genotype and phenotype
Natural selection acts on an organism's phenotype, or physical characteristics. Phenotype is determined by an organism's genetic make-up … See moreThe term natural selection is most often defined to operate on heritable traits, because these directly participate in evolution. However, natural selection is "blind" in the sense that changes in phenotype can give a reproductive advantage … See more
Natural selection is seen in action in the development of antibiotic resistance in microorganisms. Since the discovery of penicillin in 1928, antibiotics have been used to fight bacterial … See more
A prerequisite for natural selection to result in adaptive evolution, novel traits and speciation is the presence of heritable genetic variation that … See more
Wikipedia text under CC-BY-SA license Natural selection - Simple English Wikipedia, the free encyclopedia
Evolution - Wikipedia
Natural Selection - National Geographic Society
WEBOct 19, 2023 · Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in …
Darwinism - Wikipedia
WEBThe theory states that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.
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What is natural selection? - Natural History Museum
WEBNatural selection is one of the ways to account for the millions of species that have lived on Earth. Charles Darwin (1809-1882) and Alfred Russel Wallace (1823-1913) are jointly credited with coming up with the theory …
Natural selection | Definition & Processes | Britannica
WEBnatural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution. A brief treatment of natural selection …
Natural Selection - Stanford Encyclopedia of Philosophy
WEBSep 25, 2019 · For Darwin, natural selection is a drawn-out, complex process involving multiple interconnected causes. Natural selection requires variation in a population of organisms. For the process to work, …
Natural selection - Wikiwand
Natural Selection - Understanding Evolution
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 …
Natural Selection - Definition and Examples - Biology …
WEBJan 15, 2021 · Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is constantly changing. So, …
On the Origin of Species - Wikipedia
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