The respiratory system is used to get ___.
Oxygen is used to make ___.
The glucose in our food is all our bodies need to make energy.
Which body part is NOT part of the respiratory system?
Which is another name for the trachea?
The diaphragm is a type of ____.
The bronchial tubes in our lungs are most similar to ____.
Oxygen passes through the alveoli and into ____ which carry it all over.
Why is carbon dioxide a waste gas?
To exhale means to breathe out