Agar is an excellent solidifying agent for microbiological media because
A. it is not degraded by most microorganisms.
B. solid agar remains solid until the temperature is raised to 90C, and liquid agar remains liquid if the temperature is lowered to 45C.
C. it is not degraded by most microorganisms and solid agar remains solid until the temperature is raised to 90C, and liquid agar remains liquid if the temperature is lowered to 45C are correct.
D. agar provides an excellent source of nutrition for a variety of different microorganisms.
Answer: C
Microbiology
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