Bacterial cultures are easily identified from their microscopic appearance.
Answer the following statement true (T) or false (F)
False
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Microorganisms assimilate large amounts of all of the following except ________ into organic molecules.
A. sodium B. phosphorus C. nitrogen D. sulfur
The sexual spores of actinomycetes are called sporangiospores.
Answer the following statement true (T) or false (F)
Astrobiology is considered a sub-discipline of microbiology because
A. microbes are known to exist on other planets. B. all extraterrestrials known are microbial. C. life elsewhere in the universe is likely to be microbial. D. only microbes can reproduce under the extreme conditions in outer space.
A 26-year old woman, eight months pregnant, visits her obstetrician complaining of fever, myalagia and back ache of recent onset. Three weeks earlier, the patient had been a weekend guest at a rural farm-house, where all the food was reported to be "unprocessed" and "natural." A culture of the patient's blood shows listeria. What is the most likely source of the woman's infection?
A. well-done roast beef B. fresh, raw cow's milk C. home-baked bread D. homemade apply sauce E. baked apple pie