B1510F07_L03EvolIntro_skeleton

B1510F07_L03EvolIntro_skeleton - Georgia Tech School of...

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Biology 1510 Georgia Tech School of Biology Fall 2007 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 Georgia Tech School of Biology Fall 2007 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 Georgia Tech School of Biology Fall 2007 Biological Evolution In 1858, Charles Darwin and Alfred Russell Wallace simultaneously published volumes describing the fundamental mechanism of evolution through natural selection. Differential survival and reproductive success of individuals leads to bias in the propagation of genetic information from one generation to the next. Acting over time, selection can alter the genetic composition of a population, leading to changes in structure, function, behavior, etc.
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Biology 1510 Georgia Tech School of Biology Fall 2007
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B1510F07_L03EvolIntro_skeleton - Georgia Tech School of...

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