Coliforms and fecal coliform are often differentiated based on their responses to ________.
A. heavy metals
B. salinity
C. temperature
D. pressure
Answer: C
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Proper handwashing and aseptic techniques greatly reduce the likelihood of medical professionals serving as ______ carriers
Fill in the blank(s) with the appropriate word(s).
The most debilitating external parasites of birds and mammals are spread by
A) a vector. B) an intermediate host. C) a definitive host. D) direct contact.
Peroxisomes are found in large numbers in cells that synthesize, store, and degrade lipids, and one of
their functions is to break down protein molecules. __________________Indicate whether the statement is true or false.
One disease for which gene therapy has been attempted but has not yet been successful is
A. anthrax. B. tuberculosis. C. the common cold. D. cystic fibrosis.