國立臺灣大學生命科學系Chen, J. H.J. H.Chen2006-09-282018-07-062006-09-282018-07-062002-11-11http://ntur.lib.ntu.edu.tw//handle/246246/20060927123156226863the body's defenses. chen. jh. 021111. - the immune system is a security system that helps protect the animal's body. from intruders. & is a recognition system that distinguished "self" from. "non-self".application/pdf154905 bytesapplication/pdfzh-TWotherhttp://ntur.lib.ntu.edu.tw/bitstream/246246/20060927123156226863/1/16-defenses.pdf