Who's that man? ________.( )
A:She is my mother.
B:He is my father.
C:This is a book.
下列生物新个体的产生,哪些是属于无性生殖( )
①椒草的叶片长出新植株;②蛙的受精卵发育成蝌蚪;③草履虫通过分裂产生新个体;
④玉米种子种下长出玉米幼苗;⑤马铃薯的块茎发芽生根; ⑥代孕母羊产下克隆羊多利;⑦蚕蛾产下受精卵发育成蚕.