Across
- 2. Single cell microorganism without nucleus
- 4. immobile leukocyte which plays an important role in the immunity process
- 6. an organism that needs to enter a cell to multiply
- 7. all the body’s defense mechanisms
Down
- 1. microorganisms must pass through our bodies
- 3. protein capable of specifically recognizing parts of bacteria
- 5. mechanism of ingestion and digestion of pathogens