Across
- 5. breaks down food physically and chemically
- 8. moves the skeleton
- 9. releases hormones for slower body responses
- 11. carries blood, hormones, proteins
- 12. sends signals throughout the body for rapid responses
Down
- 1. fights infection
- 2. exchanges oxygen and carbon dioxide
- 3. the skin, covers and protects the body
- 4. produces gametes and offspring
- 6. moves the blood throughout the body
- 7. supports the body, protects internal organs, stores calcium
- 10. removes nitrogenous(N)wastes from the blood