下列不属于细胞凋亡现象的是(   ) ①霜冻导致香蕉植株死亡   

下列不属于细胞凋亡现象的是(   )

霜冻导致香蕉植株死亡            ②蝌蚪发育成青蛙的过程中尾部消失 

寄主细胞因病毒的增殖释放而死亡  ④花瓣的自然凋落

A①②         B①③         C②④         D③④

答案

B

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