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Viruses
Chapter 9
Term | Definition |
---|---|
Virus | A tiny nonliving particle that invades and then reproduces inside a living cell |
Host | The organism that a parasite or virus lives in or on |
Parasite | The organism that benefits by living in or on 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 |