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Unformatted text preview: temperature drops to around 42-45 C It seems to be relatively non-toxic for most bacteria It usually does not serve as a nutrition source for microorganisms ALLL OF THE ABOVE 7. Koch's postulates concerning the causative agent of a disease: a. include the concept that the organism must be obtained in pure culture 8. Alexander Fleming discovered: a. penicillin 9. Ehrlich's "magic bullet" approach to chemotherapy is that there are chemicals that are: a. 10. By showing that some bacteria have a heat stable phase making them insensitive to boiling that kills most bacteria, Tyndall and Cohn discovered: endospores 11....
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- Fall '09