http://reply.papertrans.cn/2/156/15546/15546-21.png
http://reply.papertrans.cn/2/156/15546/15546-22.png
Submitted on: 01 August 2013.
Revised on: 30 October 2013.
Accepted on: 15 December 2013.
___________________JOURNAL OF BIOLOGICAL EDUCATION
http://reply.papertrans.cn/2/156/15546/15546-24.png
http://reply.papertrans.cn/2/156/15546/15546-25.png
http://reply.papertrans.cn/2/156/15546/15546-26.png
http://reply.papertrans.cn/2/156/15546/15546-27.png
http://reply.papertrans.cn/2/156/15546/15546-28.png
http://reply.papertrans.cn/2/156/15546/15546-29.png
Submitted on: 10 May 2020.
Revised on: 23 July 2020.
Accepted on: 10 September 2020.
___________________JOURNAL OF BIOLOGICAL EDUCATION