The two main jobs of the Respiratory System are

Sending blood through veins and arteries

Protecting and comforting your Shiv Patella

Chewing and swallowing food

inhaling oxygen andrexhaling carbon dioxide

Inhaling oxygen and exhaling carbon dioxide

Explanation:

Major function of the respiratory system is to supply the body with oxygen and dispose carbon dioxide.

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.