| A | B |
|---|
| Skeletal System | Made up of bones, tendons and ligaments. |
| Muscular System | The system the produces movement. |
| Digestive System | The system where food is broken down into nutrients that an organism can use. |
| Excretory System | Removes waste products from the body. |
| Respiratory System | It is made up of the lungs and the passageways that lead to them. |
| Circulatory System | Consists of the heart and blood vessels. |
| Nervous Ssytem | Includes the brain, nerve cord, nerves and sense organs. |
| Endocrine System | The organs and glands that produce hormones that change body activity. |
