Submitted on: 29 September 2015.
Revised on: 20 November 2015.
Accepted on: 17 January 2016.
___________________BIOLOGY & PHILOSOPHY---SPRINGER
Submitted on: 08 November 2012.
Revised on: 05 February 2013.
Accepted on: 07 March 2013.
___________________BIOLOGY & PHILOSOPHY---SPRINGER
http://reply.papertrans.cn/1/37/3611/3611-33.png
http://reply.papertrans.cn/1/37/3611/3611-34.png
http://reply.papertrans.cn/1/37/3611/3611-35.png
http://reply.papertrans.cn/1/37/3611/3611-36.png