B151xF08_L03EvolIntro

B151xF08_L03EvolIntro - Georgia Tech School of Biology...

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Biology 1510/1511 Georgia Tech School of Biology Fall 2008 Module 1: Evolution Major themes What is life? Earth history Origin of life Evolution and history of life Mechanisms of evolution Speciation
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Biology 1510/1511 Georgia Tech School of Biology Fall 2008 What is Life? Typical definition: “an organized genetic unit capable of metabolism, reproduction, and evolution”. Features of living organisms: Homeostasis Metabolism Reproduction (with variation) Information (genetic) Evolution
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Biology 1510/1511 Georgia Tech School of Biology Fall 2008 Typological Species Species were long thought to be immutable (i.e., unchanging) entities. Aristotle viewed species as fixed and arranged them on a scala naturae . The Old Testament describes species as individually designed and therefore immutable. In this world view, species could be defined using a single “holotype” specimen, the ideal manifestation of the species. Individual variation was then viewed as a failure of reality to match the ideal .
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Georgia Tech School of Biology Fall 2008
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This note was uploaded on 09/04/2009 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Tech.

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B151xF08_L03EvolIntro - Georgia Tech School of Biology...

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