Is an allergy (to pollen, bees, peanuts, etc) a normal body function or a disruption of body function?
A. An allergy is a normal body function that returns the immune system to homeostasis.
B. An allergy is a disruption of normal body function when the immune system overreacts to a particular antigen.
C. An allergy is a disruption of normal body function when the immune system is inactivated and cannot fight a particular antigen.
D. An allergy is a disruption of normal body function when the immune system identifies a foreign antigen as one of the body’s own self proteins.
Answer: B