What was the most important learning you gained from this article?

What might happen if a teen made a decision that went against her personal values?

Astructural difference between the trachea and esophagus that prevents the trachea from collapsing is the presence of: a) smooth muscle b) skeletal muscle c) respiratory cilia d) rings of cartilage

Which of these is the muscular tube that leads from the mouth to the stomach? a. epiglottisb. uvulac. soft palated. esophagus