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9-1 viruses
science
| Term | Definition |
|---|---|
| Virus | A tiny, nonliving particle that invades and then reproduces inside a living cell |
| Host | The organism that a parasite lives in or on. |
| Parasite | The organism that benefits by living on or in a host in a parasitism interaction. |
| Bacteriophage | A virus that infects bacteria. |
| Vaccine | A substance used in a vaccination that consists of weakened or killed pathogens that can trigger the immune system into action. |