Across
- 3. The body’s protection from disease.
- 4. Organ that filters blood.
- 6. Site of blood cell production.
- 7. Cells that create antibodies.
- 8. Disorder involving a failed/reduced immune system.
Down
- 1. Fluid filled with white blood cells.
- 2. A foreign substance that triggers an immune response.
- 5. Immunity that comes from exposure to antibodies.