| A | B |
|---|
| cell | basic unit of structure and function in a living thing |
| nucleus | the structure in the cell containing information that determines its charcteristics |
| cytoplasm | the area between the cell membrane and the nucleus which contains a clear jelly-like substance |
| cell membrane | outside boundary of the cell |
| tissue | a group cells working together |
| organ | a group of tissues working together |
| organ system | a group of organs working together |
| levels of organization | consists of cells, tissues, organs, and organ systems |
