The phenol coefficient is one of the most widely used measurements of an antimicrobial agent's effectiveness
Indicate whether the statement is true or false
FALSE
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Infections caused by fungi are called mycoses.
Answer the following statement true (T) or false (F)
Red algae are important to biomedical/microbiological laboratories due to the algal production of:
a. carageenan. b. algin. c. agar. d. iodine. e. starch.
Why do we have fossils for only about 250,000 different species, although there must have been millions more species?
1.Fossils can form only if exposed to air, and most fossils are buried.
2.Fossils formed only where there were major disruptive geologic events, so they are relatively rare.
3.Fossils are found close to the surface so many have been destroyed by development.
4.Many ancient and extinct species were very soft, so did not fossilize well.
Which of the following is not a required characteristic of antigens from microbial pathogens that might be used in vaccine production?
A. It must be essential for the survival of the pathogen in the host. B. It must be excreted or found on the surface of the pathogen. C. It must be found in all strains of the pathogen. D. All of the choices are correct.