Across
- 5. Involved in immunity
- 6. Part of the endocrine system
- 8. Keeps blood supplied with oxygen and removes carbon dioxide
- 9. Provides heat
- 10. Protects deeper tissue from injury
- 13. Eliminates indigestives material
- 14. Production of offspring
- 15. Part of the cardiovascular system
Down
- 1. Regulation of materials
- 2. Part of the respiratory system
- 3. Transports materials in body
- 4. Secretes regulator hormones
- 7. Stores minerals
- 11. Fast-acting control system
- 12. Part of the digestive system