All of the following are true of the primary response of humoral immunity except that
A) it depends on antigen triggering the appropriate B cell.
B) it requires B cell differentiation into plasma cells.
C) it depends on memory B cells.
D) circulating antibodies undergo a gradual, sustained rise.
E) it peaks 1 to 2 weeks after the initial exposure.
Question 2
Damage to the pyramidal cells of the cerebral cortex would directly affect
A) perception of pain.
B) sight.
C) voluntary motor activity.
D) hearing.
E) balance.