1) which of the following best describes what causes plasma cells to form during a humoral immune response?
a) memory b cells signal phagocytes to attack infected cells and divide, producing plasma cells.
b) the antibodies on the surface of b cells bind to antigens, and the b cells grow and divide, producing plasma cells.
c) the antigens on the surface of a pathogen attack healthy cells, and the resulting inflammation signals t cells to divide, producing plasma cells.
d) memory t cells recognize antigens and signal t lymphocytes to divide, producing plasma cells
2) damage to which of the following structures would be most likely to result in an increase in mutations in a man's sperm cells?
a) epididymis
b) testes
c) urethra
d) scrotum