下列有关细胞生长、分裂、分化和生物体结构层次的叙述，正确的是_刷题宝

题干

下列有关细胞生长、分裂、分化和生物体结构层次的叙述，正确的是（　　）

A：细胞不断分裂和生长形成不同的组织

B：细胞分裂时，细胞核内遗传物质复制后平均分配

C：经过细胞分化，细胞内的遗传物质会发生改变

D：多细胞生物体都具有细胞、组织、器官、系统四个层次

上一题下一题 0.0难度选择题更新时间:2019-10-04 11:36:31

答案(点此获取答案解析）

B

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