2 12 10 Evolution History

2 12 10 Evolution History - Georgia Tech School of Biology...

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Georgia Tech School of Biology Spring 2008 Biology 1510 History of Earth and Life What is the history of life on Earth as revealed by the fossil record? What factors cause or explain major events in the evolution of life on Earth? For a good overview of Earth history, see: Historical Geology Website (GPC) Paleomap project: www.scotese.com
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Georgia Tech School of Biology Spring 2008 Biology 1510 Evolutionary Milestones Life arose from nonlife The first organisms were single cells Speciation has generated the diversity of life Eukaryotes are "cells within cells" Photosynthesis and sex changed the course of evolution - and the planet Multicellular organisms developed relatively late in Earth history.
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Georgia Tech School of Biology Spring 2008 Biology 1510 Three Domains of Life Campbell & Reece, Fig. 26.21
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Georgia Tech School of Biology Spring 2008 Biology 1510 Global Paleoclimate Q: Which of the following statements about global average temperature since the Cambrian (last 550 Ma) is true? a) Global average temperature for the distant past is unknown because thermometers weren’t invented until quite recently. b) Global average temperature has generally been higher than it is today. c) Global average temperature has generally been about the same as its current value. d)
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2 12 10 Evolution History - Georgia Tech School of Biology...

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