31 Footnote Attribution List
Attributions for Life in its Biological Environment
(2) OpenStax, Concepts of Biology. OpenStax CNX. Jun 13, 2017 http://cnx.org/contents/b3c1e1d2-839c-42b0-a314-e119a8aafbdd@9.22 .
(2) OpenStax, Concepts of Biology. OpenStax CNX. Jun 13, 2017 http://cnx.org/contents/b3c1e1d2-839c-42b0-a314-e119a8aafbdd@9.22 .