Penicillin was discovered by accident by
A) Alexander Fleming.
B) Paul Ehrich.
C) Edward Jenner.
D) Robert Koch.
E) Joseph Lister.
A
Biology & Microbiology
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Where does chemical digestion first begin in the body?
a. The mouth b. The esophagus c. The bolus d. The stomach
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Semilunar valves prevent blood from flowing ________.
Fill in the blank(s) with the appropriate word(s).
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Used to transfer solid ingredients to weighing pans and ointment slabs to mix compounds.
Biology & Microbiology
A competitive inhibitor of eukaryotic RNA polymerase III would have the greatest effect on:
A. replication B. reverse transcription C. translation D. mutation
Biology & Microbiology