Walters-BSC2010-Chapter22-10

Walters-BSC2010-Chapter22-10 - Chapter 22: A Darwinian View...

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Chapter 22: A Darwinian View of Life Evolution : processes that have transformed life on earth from its earliest forms to today’s diversity
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Origin of Species by Means of Natural Selection Published by Charles Darwin on November 24, 1859 1st convincing case for evolution Darwin: 1854
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Jean Baptiste Lamark Only previous model on how life evolved that made any sense Good parts: used fossil record related extinct species to extant species proposed changes due to environmental adaptation (to better match their environment)
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Lamark’s Ideas on Evolution Bad parts: Use and disuse : body parts used a lot become bigger and stronger, parts not used deteriorate Inheritance of acquired characteristics : modifications acquired during lifetime passed on to offspring
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Charles Darwin Born: 1809 in England (year Lamark published) Quit medical school, went to Cambridge to join clergy (most naturalists were clergy) BA degree in 1831, that December sailed as the naturalist on HMS Beagle
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HMS Beagle’s mission : chart poorly known South American coastline Darwin’s job : collect specimens Saw diverse habitats (tropical to sub-arctic)
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This note was uploaded on 08/19/2011 for the course BSC 2010c taught by Professor Janewaterman,pamelathomas during the Spring '07 term at University of Central Florida.

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Walters-BSC2010-Chapter22-10 - Chapter 22: A Darwinian View...

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