Across
- 5. Site of gas exchange
- 6. Engulfing pathogens
- 7. Prokaryote pathogen
- 8. Without oxygen
- 9. Produced by anaerobic respiration
- 11. Disease-causing microorganisms
- 12. Weakened pathogen
Down
- 1. Site of respiration
- 2. Antibody-producing cells
- 3. With oxygen
- 4. Breakdown of glucose
- 5. Immunity proteins
- 10. Foreign substance