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Also found in fungi
The substance that makes up the outer shell of insects.
The substance that makes up the outer shell of insects, and is also found in the cell wall of fungi <ref>Morphology of the fungi [http://www.ucmp.berkeley.edu/fungi/fungimm.html]</ref>
A chemical that provides both toughness and flexibility.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>
A chemical that provides both toughness and flexibility.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref>