Desiccation, a time-honored method of preserving food, is effective because the
A) heat of the process kills microbes.
B) freezing step of the process kills microbes.
C) salt concentration is too low to support metabolic function.
D) UV light used in the process of sun drying penetrates effectively.
E) water content is too low to support metabolic function.
E
Bloom's Taxonomy: Comprehension
Section: Physical Methods of Microbial Control
Learning Outcome: 9.15
9.2 True/False Questions
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Alligators more closely resemble lizards than birds; however, alligators and birds have four-chambered hearts, which
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a. derived character; more closelyb. key innovation; more closely c. derived character; more distantly d. key innovation; not e. homologous structure; more distantly
A primary oocyte is indicated by the letter ____
a. A b. B c. C d. D e. E
The belief that humans arose in sub-Saharan Africa and then moved out is which model of evolution?
a. classic b. retroactive c. multiregional d. migratory e. African emergence
Which of the following would be considered a macromolecule?
A. CO2 B. ammonia C. egg protein D. hydrochloric acid