Which of the following is the function of bacteria found in human guts?

a. to synthesize vitamin A
b. to synthesize vitamin C
c. to synthesize vitamin K
d. to synthesize vitamin B


Ans: c. to synthesize vitamin K

Biology & Microbiology

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Given what you now know, what information is most likely to produce the correct answer?

What will be an ideal response?

Biology & Microbiology

The ____________________ is used to package and ship components to other organelles and out of the cytoplasm.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A ________ assay is most useful for determining the viability of a viral preparation.

A. PCR B. plaque C. hemagglutination D. direct (electron microscopic) count

Biology & Microbiology

Based in the information provided, the best explanation for the low numbers of spiders and flies in plot 5 is:

A. centipedes are actively consuming flies and spiders. B. there were not enough spiders to catch and consume all the flies. C. there were not enough flies to support a large centipede population. D. centipedes prefer spiders to flies.

Biology & Microbiology