Across
- 3. – Single-celled microorganisms that can be helpful or harmful.
- 4. – Substance that stimulates immunity against a pathogen.
- 7. – Shape of cocci bacteria.
- 8. – Medicine that kills or stops bacterial growth.
- 10. – General term for a microscopic organism.
- 11. – Microscopic agent that requires a host to replicate.
- 12. – Tail-like structure that helps bacteria move.
Down
- 1. – Any organism that causes disease.
- 2. – To transmit disease-causing organisms to a host.
- 5. – Resistant form some bacteria create to survive harsh conditions.
- 6. – Poisonous substance produced by some bacteria.
- 9. – Describes the system that defends the body from infection.