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Lerok [7]
3 years ago
6

The structure that covers the opening to the trachea during swallowing, thereby preventing food from entering the air passageway

, is the
Biology
1 answer:
Dominik [7]3 years ago
6 0
The epiglottis is a flap that covers the opening to the trachea when you swallow.

Hope this helps!
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