Across
- 2. eliminate nitrogenous wastes
- 4. keeps blood supplied by oxygen
- 8. synthesizes vitamin D
- 10. secretes regulatory hormones
- 11. provides muscular attachment for movement
Down
- 1. maintains posture and allows locomotion
- 3. fast acting control system
- 5. production of offspring
- 6. transports materials in body by blood pumped by heart
- 7. returns fluids to blood vessels
- 9. breaks down food and allows for nutrient absorption