Charles Darwin quote about evolution from On The Origin of Species - It seems clear that organic beings must be exposed during several generations to new conditions to cause any great amount of variation; and that, when the organisation has once begun to vary, it generally continues varying for many generations.
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“ It seems clear that organic beings must be exposed during several generations to new conditions to cause any great amount of variation; and that, when the organisation has once begun to vary, it generally continues varying for many generations. ”
 Charles Darwin, On The Origin of Species (1859). copy citation

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Author Charles Darwin
Source On The Origin of Species
Topic evolution variation generations
Date 1859
Language English
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Weblink http://www.gutenberg.org/files/2009/2009-h/2009-h.htm

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Charles Darwin quote about evolution from On The Origin of Species - It seems clear that organic beings must be exposed during several generations to new conditions to cause any great amount of variation; and that, when the organisation has once begun to vary, it generally continues varying for many generations.
Charles Darwin quote about evolution from On The Origin of Species - It seems clear that organic beings must be exposed during several generations to new conditions to cause any great amount of variation; and that, when the organisation has once begun to vary, it generally continues varying for many generations.