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naturalselection
natural selection
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The answer NATURALSELECTION (natural selection) has 3 possible clue(s) in existing crosswords.
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The word NATURALSELECTION (natural selection) is NOT valid in any word game. (Sorry, you cannot play NATURALSELECTION (natural selection) in Scrabble, Words With Friends etc)
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Definitions of natural selection in various dictionaries:
noun - a natural process resulting in the evolution of organisms best adapted to the environment
NATURAL SELECTION - That which is selected; a collection of things chosen; as, a choice selection of books.
NATURAL SELECTION - Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, t...
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Keep reading for additional results and analysis below.
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Evolutionary process |
Way to evolve and, alas, turn nasty on being voted in |
Darwinian process |
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Darwin defined it as "preservation of favorable variations and the rejection of injurious variations" |
(Alex reports from a field of flowers in the Galapagos Islands, Ecuador.) Specimens of finches from different parts of the Galapagos gave Darwin a deep insight into evolution; later, back home in England, he figured out its mechanism, this 2-word term |
(Sarah of the Clue Crew holds up a chameleon for us to look at.) Gaudy male chameleons pass on their genes more effectively than dull-looking ones; that's an example of what Darwin called the sexual type of this, favoring animals that are better at finding mates. |
Natural selection might refer to |
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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 artificial selection, which in his view is intentional, whereas natural selection is not. * Variation exists within all populations of organisms. This occurs partly because random mutations arise in the genome of an individual organism, and offspring can inherit such mutations. Throughout the lives of the individuals, their genomes interact with their environments to cause variations in traits. The environment of a genome includes the molecular biology in the cell, other cells, other individuals, populations, species, as well as the abiotic environment. Because individuals with certain variants of the trait tend to survive and reproduce more than individuals with other, less successful variants, the population evolves. Other factors affecting reproductive success include sexual selection (now often included in natural selection) and fecundity selection. * Natural selection acts on the phenotype, the characteristics of the organism which actually interact with the environment, but the genetic * (heritable) basis of any phenotype that gives that phenotype a reproductive advantage may become more common in a population. Over time, this process can result in populations that specialise for particular ecological niches (microevolution) and may eventually result in speciation (the emergence of new species, macroevolution). In other words, natural selection is a key process in the evolution of a population. * Natural selection is a cornerstone of modern biology. The concept, published by Darwin and Alfred Russel Wallace in a joint presentation of papers in 1858, was elaborated in Darwin's influential 1859 book On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life. He described natural selection as analogous to artificial selection, a process by which animals and plants with traits considered desirable by human breeders are systematically favoured for reproduction. The concept of natural selection originally developed in the absence of a valid theory of heredity; at the time of Darwin's writing, science had yet to develop modern theories of genetics. The union of traditional Darwinian evolution with subsequent discoveries in classical genetics formed the modern synthesis of the mid-20th century. The addition of molecular genetics has led to evolutionary developmental biology, which explains evolution at the molecular level. While genotypes can slowly change by random genetic drift, natural selection remains the primary explanation for adaptive evolution.* |