Biology for IGCSE & O level - Human Nutrition (Section 3 - No. 23)
What is the role of the epiglottis during swallowing?
To prevent food from entering the trachea.
To move the food bolus down the esophagus.
To produce saliva.
To aid in the breakdown of starch.
Explanation
The epiglottis covers the trachea during swallowing to prevent choking.
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