Chapter 7:1
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Created by:
sharonrunyon on March 3, 2010
Subjects:
science vocab, 7th grade science
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5 terms
Terms | Definitions |
|---|---|
 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 on or in a host in a parasitism interaction. |
| bacteriophage | A virus that infects bacteria. |
| vaccine | A subtance used in a vaccination that consists of weakened or killed pathogens that can trigger the immune system into action. |
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