Recent content by Christinaaa

  1. C

    Paper 1 biology as mcq

    The answer should be D because HIV is a virus and virus cannot be controlled using antibiotics
  2. C

    Paper1doubt

    Antigens are only found on the surface of pathogen and the surface of macrophage
  3. C

    Bio as

    Memory cell undergo mitosis to produce the plasma cell that is "complementary" to the antigen found
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