Which one of the following is not an antibiotic derived from Bacteria?
A. Cephalosporin
B. Erythromycin
C. Bacitracin
D. Streptomycin
Answer:A
Which one of the following is not an antibiotic derived from Bacteria?
A. Cephalosporin B. Erythromycin C. Bacitracin D. Streptomycin