Abstract
Revista Bio Ciencias, Year 4, Vol. 2, No. 4, August - January 2014. Biannual publication edited by the Universidad Autonoma de Nayarit, Ciudad de la Cultura "Amado Nervo" Col. Los Fresnos, CP. 63190, Tepic, Nayarit, Mexico. Phone number: 311 2118800, 8922. Email: revistabiociencias@gmail.com, http://biociencias.uan.edu.mx. Editor in Chief: Dr. Manuel Ivan Giron Perez. Rights to exclusive use registration number 04-2010-101509412600-203, ISSN 2007-3380, both granted by the Instituto Nacional de Derechos de Autor. Responsible of the last update of this number, Infraestructura Academica Universidad Autonoma de Nayarit, Ing. Luis Eduardo Flores Lopez, COMPLEX Cd. de la Cultura "Amado Nervo" Col. Los Fresno, CP. 63190 Tepic, Nayarit, Mexico. The opinion expressed in the signed articles is responsability of the authors. Total or partial reproduction of content and images is authorized, always that the reference is cited and is with not profitable purposes.
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