Across
- 3. fundamental unit of muscle tissue
- 4. large molecules broken down by physical actions
- 5. involved in creating children
- 8. carries blood from the heart
- 9. biological systems maintain stability
- 11. contains brain, spine, and nerves
- 12. system that removes waste products
- 13. conditions maintained by living organisms
- 14. body's support structure
- 17. delicate blood vessels
- 19. contains tissues
Down
- 1. group of organs that breaks down food for nutrients
- 2. contains heart and blood vessels
- 3. permits the movement of the body
- 6. regulate physiology and behavior
- 7. contains lungs, nose, and mouth
- 10. ability to shorten or contract to produce movement
- 15. carries deoxygenated blood to the heart
- 16. organ that makes one or more substances
- 18. large molecules broken down by enzymes