A certain antibiotic X is effective only against a few types of harmful microbes and cells. X is a _______ antibiotic.
A. broad-spectrum
B. narrow spectrum
C. limited spectrum
D. antibacterial
Answer:B
A certain antibiotic X is effective only against a few types of harmful microbes and cells. X is a _______ antibiotic.
A. broad-spectrum B. narrow spectrum C. limited spectrum D. antibacterial