Across
- 2. system protects organs, makes blood cells, supports and shapes the body
- 3. system transports materials to and from cells
- 4. protects the brain
- 7. system exchanges gas, oxygen and carbon dioxide
- 10. waterproofs the body and helps sense the world
- 11. protect fingers and toes
- 12. muscle that pumps blood
- 13. cage, protects lungs and heart
Down
- 1. system maintains homeostasis and first line of defense
- 5. organ that exchanges oxygen and carbon dioxide
- 6. muscle, found in internal organs
- 8. supports organs
- 9. system allows for movement
- 12. provides insulation