ISS - ISS (9/15/09) 1. Evolutionary theory a. Key issues...

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ISS (9/15/09) 1. Evolutionary theory a. Key issues and concepts i. The synthetic theory of evolution ii. Natural selection: 1. Organisms produce great numbers of offspring, but the population sizes remain constant a. High rate of mortality among immature individuals 2. Individuals with certain characteristic can be better adapted to an environment than others. a. There is tremendous variety in the characteristic of a population, some of which are better suited to survival than others 3. There are gradual changes in the characteristics of each succeeding generation of a population, and these changes are an improvement in the degree of adaptation iii. Thomas Malthus 1. Human populations, if left to their own devices, increase at geometric rate 2. Food resources were increasing at a slower arithmetic rate 3. Human populations were not increasing at the potential rate he argued there must be checks on population growth
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4. Both Darwin and Wallace talked about SELECTION. a. Explain why populations remained small. And in check with
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This note was uploaded on 05/02/2010 for the course ISS 220 taught by Professor Bailey during the Spring '08 term at Michigan State University.

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ISS - ISS (9/15/09) 1. Evolutionary theory a. Key issues...

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