Immunoglobulins that are found on the surface of B cells and that may activate antibody production are
A) IgA.
B) IgD.
C) IgE.
D) IgG.
E) IgM.
B
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The amount of cortical space in the primary motor cortex devoted to a given body part is proportional to the size of the part
Indicate whether the statement is true or false
Cardiovascular changes resulting from moderate exercise include ________.
A. increased visceral blood flow B. increased total peripheral resistance C. increased blood flow to the skin D. decreased stroke volume
People lacking Rh factor are born with circulating antibodies against it
Indicate whether the statement is true or false.
Atrophy at the neuromuscular junction that naturally occurs with age would have what effect on muscles?
A. It would stimulate the nervous system to increase the speed in which it sends action potentials to the myofiber. B. It would stimulate muscle cramps. C. It would decrease the number of action potentials sent to the myofiber. D. It would cause an increase in the amount of ACh released by the neurons to compensate. E. It would have no effect on the muscles.