the structures of the upper respiratory system\ninclude the lungs.\nare located inside the thorax.\nallow…

the structures of the upper respiratory system\ninclude the lungs.\nare located inside the thorax.\nallow gases to enter and escape the body.\nallow for movement of gases in and out of cells.

the structures of the upper respiratory system\ninclude the lungs.\nare located inside the thorax.\nallow gases to enter and escape the body.\nallow for movement of gases in and out of cells.

Answer

Brief Explanations:

  • Lungs are part of the lower respiratory system, so the first option is incorrect.
  • Upper respiratory structures (like nose, pharynx) are outside the thorax, so the second option is wrong.
  • Gas exchange at the cellular level is not the role of the upper respiratory system, so the fourth option is incorrect.
  • The upper respiratory system forms the entry/exit pathway for gases to enter and leave the body.

Answer:

allow gases to enter and escape the body.