Across
- 2. A disease-causing organism
- 5. The liquid portion of blood.
- 6. A thin, clear liquid consisting of water, salts, and protective immune cells.
- 10. A chemical your immune system releases that causes allergy symptoms.
- 13. Protect the body from physical, chemical and biological damage.
- 14. The body's immune system's response to an irritant.
- 15. Yellowish and bad-smelling liquid.
Down
- 1. The immune system know the distinguish itself from others.
- 3. A type of cell that engulfing and absorbing bacteria and other small cells and particles.
- 4. Microscopic living organisms that have only one cell.
- 7. How the immune system detects danger.
- 8. An oily substance that protect and hydrate the skin.
- 9. Increased movement of fluid and white blood cells into the injured area.
- 11. large and complex molecules that have important roles in the body.
- 12. An immune response that causes high body temperature.