An even smaller society: did you know that all bacteria are single-celled organisms? Bacteria Cells are much smaller and more simple than eukaryotes like plant and animal cell.

一个更小的社会：你知道吗，所有的细菌都是单细胞生物？细菌细胞比植物和动物真核细胞相比，更简单也更小。

youdao

We talked about last time that part of the process of going from this single cell to multi cellular many celled organisms like we are is cell division.

我们上节课说过,从一个单细胞分裂形成大量细胞,构成的器官的过程,叫做细胞分裂

耶鲁公开课 - 生物医学工程探索课程节选