Is an instrument used to perform a type of body fat evaluation

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

This migraine wont go away and i dont feel safe taking any more medicine for the next few hours

Bacteria can cause different infections, check all that apply. a. sore throat b. measles c. ear infection d. flu e. cavities