An 'antigen' is

  • A
    That which acts with plasma
  • B
    That which opposes the action of antibody
  • C
    The stimulus for antibody production
  • D
    The antibody only

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Cell-mediated immunity is mainly a function of

Antibodies fight against:

Which of the following are primary lymphoid organs?

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What is the immune response mediated by antibodies known as?

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