Across
- 3. Virus, Bacteria, Fungi, Parasite.
- 4. Living single-celled organisms.
- 6. Non-living genetic material in a shell.
- 7. A Y-shaped protein that marks germs.
- 8. The body's ability to resist a specific infection.
Down
- 1. Any germ that makes you sick.
- 2. Host, Vaccine, Antibiotic.
- 5. Phagocyte, Inflammation, Mucus, Fever, Memory Cells, Antibody.