Immune Response in biochemistry
Which of the following is in the lymph nodes of a person battling a cold virus?

All of these
Lymph ducts that enter and exit the nodes and Lymph fluid
Trapped viruses that have been roaming the body
Huge numbers of white blood cells

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Immune Response in biochemistry
Immunological memory is due to

short lived helper T cells that signal macrophage to divide
long lived B cells that secrete a specific antibody
long lived B cells that secrete a specific antigen
short lived macrophage that can recognize specific pathogens

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