Across
- 1. the second physical barrier
- 4. allows cells to travel to injured area faster
- 6. the second response in your body
- 7. a physical barrier
- 8. what is trying to harm you
Down
- 1. engulf pathogens and damaged cells
- 2. acts as a fuel
- 3. the type of alarm that goes off
- 5. body's first defense
- 6. protein signals that warn other cells