Across
- 2. Used in digestive system
- 4. What is one of the main structures for the respiratory system?
- 5. What can help the excretory system function efficiently?
- 8. Helps circulatory system
- 11. The purifying system
- 12. dioxide Leaves the blood with help of respiratory system
- 13. What is pumped with nutrients with help of the circulatory system?
Down
- 1. What is a main structure in the circulatory system?
- 3. What removes waste energy from blood?
- 6. Removes waste from blood
- 7. What system changes food into nutrients?
- 9. system What does sleeping well help?
- 10. The blood system
- 13. Needed in the nervous system