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Evolution of Amphibians - PowerPoint PPT Presentation

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Evolution of Amphibians

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They have a 2-phase life history. There is usually a free-living aquatic ... By the Carboniferous, all taxonomic groups of ... to early Carboniferous. ... – PowerPoint PPT presentation

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Date added: 4 December 2009
Slides: 49
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Learn more at: http://cstl-csm.semo.edu
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