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