6. During an infection, the immune system alerts the organ systems of the body by producing responsible for the body aches felt during an influenza infection. These are also

Immunity can be acquired in an active or passive way, and it can be natural or artificial. Watch this video (http://openstaxcollege.org/l/immunity) to see an animated discussion of passive and active immunity. What is an example of natural immunity acquired passively?

A dendritic cell engulfs a bacterium, then present bacterial bits on its surface along with a(n) _____. a. MHC marker b. antibody c. T cell receptor d. antigen

Allergy to pollen is classified as _______. a. an autoimmune reaction b. immunodeficiency c. delayed hypersensitivity d. immediate hypersensitivity

Which of the lymphoid nodules is most likely to see food antigens first? tonsils Peyers patches bronchus-associated lymphoid tissue mucosa-associated lymphoid tissue

Why can’t dogs catch the measles?

______ trigger(s) immune responses. a. Cytokines b. Lysozyme c. Antibodies d. Antigens e. Histamines f. MHC markers