Choose the most appropriate
1. The epiglottis guards the opening of
a. oesophagus.
b. eustachian tubes.
c. larynx
d. trachea.
Lungs are covered by
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Explanation:
Choose the most appropriate
1. The epiglottis guards the opening of
a. oesophagus.
b. eustachian tubes.
c. larynx
d. trachea.
Lungs are covered by
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