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Download DARWINISM Darwinism is a theory of biological evolution
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Transcript
DARWINISM Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (18091882) and others. It is a theory of biological evolution stating that all species of organisms have developed from other species, primarily through natural selection. English biologist Thomas Henry Huxley coined the term Darwinism in April 1860. NEO-DARWINISM Neo-Darwinism is the "modern synthesis" of Darwinian evolution through natural selection with Mendelian genetics. The term was first used to explain that evolution occurs solely through natural selection, and not by the inheritance of acquired characteristics resulting from use or disuse. Neo-Darwinism introduced the connection between two important discoveries: the units of evolution (genes) with the mechanism of evolution (natural selection). HERIDETARY MECHANISM When Charles Darwin proposed his theory of evolution in 1859, one of its major problems was the lack of an underlying mechanism for heredity.Darwin believed in a mix of blending inheritance and the inheritance of acquired traits.
