Immunity

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Across
  1. 2. a toxin or foreign substance which induce an immune response in the body
  2. 4. the ability of an organism to resist a particular infection or toxin by the action of specific antibodies.
  3. 6. fist size organ in the upper left side of our abdomen
Down
  1. 1. the action of defending from or resisting attack
  2. 3. lymphoid organ situated in the neck of vertebrates which produce t-lymphocytes
  3. 5. fleshy pads located at each side of the back of the throat