The ________ are the final branchings of the respiratory tree and perform gas exchange for the lung

Which of the following liquids is heavier than water?

A. Gasoline B. Cooking oil C. Epichlorohydrin D. Most flammable liquids

What is the term for the openings created by the alae nasi and septal cartilage?

A. nares B. glottis C. vestibule D. choana