The common passageway shared by the respiratory and digestive systems is the
a) trachea.
b) glottis.
c) pharynx.
d) larynx.
e) vestibule.

Pharynx

Explanation:

The structure that is shared by both respiratory system and digestive system is the oral pharynx.

On the other side of the opening between the oral pharynx and mouth cavity is a palatine tonsil. This is called palatine tonsil because of its proximity to palate.

This structure lies behind mouth and nasal cavity and above the esophagus and larynx.

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answer:

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explanation: