In a class of 40 students, there are 15 boys. What is the ratio of boys to girls?Answer: ___________

Lipid A is located

A) in the outer membrane of gram-negative organisms. B) on the porin proteins of both gram-positive and gram-negative organisms. C) in the cytoplasmic membrane of gram-negative organisms. D) on the teichoic acid of gram-positive organisms.

A young female patient has been stung by a bee and complains that her "throat is closing up." She states that she is allergic to bee stings; the last time this happened, she had to have a "tube put into my windpipe." She is struggling to breathe and can speak only a few words at a time. Knowing that allergic reactions can cause swelling in the pharynx and the larynx, what airway sound would indicate that the patient indeed has swelling in this area?

A) Gurgling B) Stridor C) Snoring D) Wheezing