The immune system develops                  through exposure to               .

Which of the following best describes the impacts of antigenic variation? Mark all that apply.    A. requires clonal selection of B cells   B. causes a primary immune response   C. involves T-independent immune responses    D. memory cells are stimulated by the antigen variants

Fever may be one of the most important components of Select one: a. Adaptive immunity b.Acquired immunity c.AVP d.Innate immunity

For an autoimmune disease to occur, lymphocytes do not learn how to recognize foreign pathogens as dangerous and self-antigens as safe. What is the second thing that needs to happen specifically with lymphocytes to have an autoimmune disease? O a. Malfunctioning lymphocytes attach to macrophages O b. Malfunctioning lymphocytes are not destroyed by the body O c. Malfunctioning lymphocytes prevent normal lymphocytes from reproducing O d. Malfunctioning lymphocytes trigger the complement system to initiate an immune response