IgM class:
a. persistent for about 3 weeks
b. is involved in the humoral immune response - during the 2nd contact with a certain antigen structure
c. are the most active immunoglobulins in the classical pathway of complement system activation
d. posses agglutinant effect on bacteria and viruses
e. are the most active immunoglobulins in the alternative pathway of complement system activation
c. are the most active immunoglobulins in the classical pathway of complement system activation
d. posses agglutinant effect on bacteria and viruses
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