| A | B |
|---|
| Skeletal | system which supports the body |
| Digestive | system which breaks down food |
| Nervous | system which controls the body and receives info from environment |
| Endocrine | system which controls body processes using hormones |
| Excretory | system which gets rid of waste |
| Muscular | system which makes you move |
| Respiratory | system which gets oxygen into body |
| Circulatory | carries materials to and from body cells |
| cell | the basic unit of structure and function in living things |
| tissue | a group of similar cells that work together to perform the same job |
| organ | a group of similar tissues that work together to perform the same job |
| organ system | a group of similar organs that work together to perform the same job |
| organism | a living thing |
| blood | a liquid connective tissue |
| connective | tissue that supports and connects |
| epithelial | tissue that covers and protects |
| nerve | tissue that carries messages |
| muscle | tissue that contracts to make you move |
| heart | pumps blood |
| brain | main organ of nervous system |
