OpenStax College2017-05-092017-05-092015-06-15http://hdl.handle.net/10790/3099If you use this textbook as a bibliographic reference, then you should cite this textbook as follows: OpenStax College,Biology. OpenStax College. 30 May 2013. <http://cnx.org/content/col11448/latest/>. Compare with Concepts of Biology, which is tailored to non-majors.Creative Commons AttributionTextbook