| A | B |
|---|
| division of labor | the work of keeping organisms alive is divided among the different parts of the body |
| Cells | level one of organization |
| Tissues | level two-group of simular cells that perform a specific function |
| Organs | Level 3-group of different tissues working together |
| Organ systems | Level 4- group of organs that work together to to perform a specific function |
| Organism | Level 5- an entire living thing that carries out all the basic life functions |
| Examples of organisms | you, dogs, plants, unicellular bacterium |
| Examples of organ systems | skeletal, skin, digestive, circulatory |
