Across
- 3. skin
- 4. major respiratory organ
- 8. has the respiratory system muculer system in it
- 10. change to the environment
- 11. have lungs as a main organ
Down
- 1. produces hormones
- 2. has bones
- 5. have the bladder
- 6. water
- 7. one parent
- 9. has the heart
- 12. two parents