Biology 121 – October 11-13 2016 Evolution and Natural...

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Biology 121 – October 11-13, 2016 Evolution and Natural Selection Reading: Ch. 24 Learning Objectives: 1. Describe the contribution of historical figures to the theory of evolution. 2. Explain with examples why islands can be evolutionary “hot spots”. 3. Predict how natural selection acting on individuals will affect evolution in populations. 4. Explain and give examples of how homologies (structural, developmental and molecular) provide evidence for evolution. 5. Explain the various kinds of abundant evidence for evolution. Evolution as Theory “The theory that all organisms on earth today are related, and are descendants of common ancestors that arose in the distant past.” Evolution as Fact “Changes in the features of organisms in a biological population that occur over the course of generations.” can be measured as: “A change in allele frequency”. A) Darwin’s Voyage of Discovery Charles Darwin (1809-1882) Voyage of the Beagle (1831-1836)
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Alfred Russell Wallace (1823 – 1913)
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