The third line of defense fights disease by O providing a physical barrier against pathogens.
attacking each pathogen it encounters in the same manner.
O producing a fever to raise the body temperature making it inhabitable to pathogens.
O producing a specific and unique response for each kind of pathogen it encounters.

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

A5-year-old boy suddenly begins coughing while eating peanuts. he is choking and gagging. when he is brought to the ed, but he is awake and is able to give his name. on physical examination, his vital signs are stable. on examination of the chest, inspiratory stridor and intercostal and suprasternal retractions are apparent. which of the following is the most appropriate initial step in management? - allow patient to clear foreign object by spontaneous coughing- clear oropharynx with multiple blind sweeps with finger- position patient and perform back blows- stand behind patient and perform abdominal thrusts- perform emergency tracheostomy and take to surgery

Anti-smoking ads are an example of a) the influence of friends b) the influence of family c) the influence of media d) the influence of teachers