| A | B |
|---|
| cell | The basic unit of life |
| tissue | A group of cells working together to perform a job in the body |
| organ | A group of tissues that work together to perform a job in the body |
| cell theory | The three phrases that describe the characteristics that are common to all cells |
| organism | A living thing that is capable of carrying out the functions of life independantly |
| organelles | The parts that make up the cell |
| organ system | A group of organs that work together to perform a job in the body |
| cytologist | Scientist that studies the cell |
