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Name: ____________________________________ Date: _______________ Period: ______ Assign#:______ Unit 7 #1 - Darwin’s Idea Chapter 15 For each person listed below describe their ideas Scientist Their Theory/Idea Aristotle Linnaeus Cuvier Hutton / Lyell Lamarck Malthus Darwin What did Darwin notice about the finches on the Galapagos islands? The differences in beak allowed some finches to: What was the name of Darwin’s book? The essence of Darwin’s ideas (5 items) : ___________________________________ Evolution by Natural Selection Darwin had three main points to his theory of evolution by natural selection. Thoroughly explain, in 3-5 sentences each of Darwin’s observations. “The struggle for existence” ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ “Survival of the Fittest” FITNESS: ____________________________________________________________________ ADAPTATION: _______________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ “Descent with Modification” ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ 2 main sources of variation: ______________________ + _________________________________ The main difference between Darwin and Lamarck explaining a giraffe’s neck:
