Across
- 3. what pulls on bones
- 4. helps you reproduce
- 7. has to do with nerves
- 8. breathes in oxygen and out carbon dioxide
- 9. this makes things leave your body
Down
- 1. all your bones
- 2. helps fight sickness
- 5. once you eat food
- 6. your heart and blood vessels
- 9. hormones