• BBC's Origin of Species Online
  http://www.bbc.co.uk/education/darwin/index.shtml
  


• TalkOrigins Newsgroup
  http://www.talkorigins.org/
  


• History of Evolutionary Theory
  http://www.ucmp.berkeley.edu/history/evolution.html
  


• Major Themes in Evolution
  http://www.nap.edu/readingroom/books/evolution98/evol2.html
  


• The Tree of Life Home Page
  http://tolweb.org/tree/phylogeny.html
  


• DNA Structure and Function
  http://biology.clc.uc.edu/courses/bio104/dna.htm
  


• Chemical Differences Between DNA & RNA
  http://www.biochem.uwo.ca/meds/medna/NAchem.html
  


• Biodiversity hypertextbook
  http://darwin.bio.uci.edu/~sustain/bio65/Titlpage.htm
  

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