The antibody function known as Is illustrated in figure A) agglutination B) neutralization C) opsonization F,receptor protein Question 51 During an infection with Rickettsia, an intracellular bacterium, APCS will present antigen on MHC II molecules. o True o False Question 52 A single B lymphocyte can recognize multiple antigenic determinants. True o False Question 53 A secondary immunodeficiency disease is not the result of A) genetic defects. B) malignancies. C) advanced age. D) malnutrition. E) certain virus infections. O B o E