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Post date: Nov 12, 2015 6:00:48 PM
Biotic and Abiotic:
https://www.youtube.com/watch?v=E1pp_7-yTN4
Adaptions:
https://www.pebblego.com/content/science/article.html?a=2182&previous=2997
Evidence:
http://evolution.berkeley.edu/evolibrary/article/lines_01
Natural Selection:
Google Sites
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