Respiratory system i cant do 20

1234567891011121314
Across
  1. 1. what part of the pharynx is behind the nasal cavity
  2. 3. you breath but its not your nose
  3. 5. its in the middle of your treacya
  4. 9. what do we mainly breath in
  5. 11. trachea is also know as the
  6. 13. main part of breathing]
  7. 14. you breath but its not you mouth
Down
  1. 2. blood exchange takes place where
  2. 4. when your diagram is spazing out you get the
  3. 6. what part of the pharynx behind mouth
  4. 7. it make you breath with out thinking about it even when you are sleeping
  5. 8. As air enters, it is warmed, moistened, and
  6. 10. do you lose alot of water just by breathing? T or F
  7. 12. what are the only organs that can float on water