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Evolutionary change is change in the genetic constitution of a population. This type of change can come about as a result of a number of factors. Imm… - Philip Kitcher
" "Evolutionary change is change in the genetic constitution of a population. This type of change can come about as a result of a number of factors. Immigration and emigration of organisms will bring new alleles and new allelic combinations into the population and will cause others to disappear. Mutation will lead to the formation of new alleles. The major claim of a Darwinian theory of evolution is that the principal factor of change is natural selection: The most important evolutionary changes come about because some allelic pairs are fitter than others, and these obtain greater representation for their constituents alleles in subsequent generations.
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About Philip Kitcher
Philip Stuart Kitcher (born 20 February 1947) is a British philosophy professor who specializes in the philosophy of science, the philosophy of biology, the philosophy of mathematics, the philosophy of literature, and more recently pragmatism.
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Philip Stuart Kitcher
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Additional quotes by Philip Kitcher
I now turn to the last gasp of the Creationists’ “scientific” defense of their theory. We have looked at a “theory” that has no detailed problem solutions to its credit (except those it borrows from its rival), that has no clearly defined problem-solving strategies, that encounters anomalies whenever it becomes at all definite, but that typically relapses into vagueness whenever clear-cut refutations threaten. Why should we take this “theory” to be worthy of any consideration?
The formulation that I have given accords with those found in textbooks on physics. But it does not coincide with the statements of the second law offered by some Creationists.
Creationists like to present the second law either by omitting any mention of its restriction to closed systems or by choosing a statement that does not make this restriction clear.
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