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Food is prevented from entering the trachea because:

A. Trachea will constrict during swallowing
B. Oesophagus will dilate during swallowing
C. Glottis will constrict during swallowing
D. Larynx will be raised during swallowing

User Droidsites
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Answer:

Food is prevented from entering the trachea because C

User PurpleAlien
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