The natural penicillins are primarily effective against 1. gram-negative bacteria. 2. gram-positive bacteria. 3. viruses. 4. anaerobes. 5. mycoplasmas

a. 1 and 5 only
b. 2 and 4 only
c. 3 and 5 only
d. 1, 2, 3, and 4 only


ANS: B

Health Professions

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