Respiratory system

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Across
  1. 4. large dome like structure
  2. 5. tube connecting larynx to bronchus
  3. 7. Flying mammal
  4. 8. Man's best friend
  5. 9. Likes to chase mice
Down
  1. 1. Has a trunk
  2. 2. name for the throat
  3. 3. Large marsupial
  4. 6. area where gaseous exchange occurs