Across
- 1. Protects from water loss
- 3. Coordinates involuntary responses.
- 7. excretes waste material
- 10. hormone production.
Down
- 2. Allows for movement.
- 4. ability to reproduce.
- 5. gas exchange.
- 6. supports the body with structure.
- 8. transports gas and nutrients.
- 9. mechanical breakdown of food.