The photosynthetic membrane of Halobacterium salinarium contains ________.
A. chlorophyll a and b
B. bacteriorhodopsin
C. bacteriochlorophyll
D. archaeochlorophyll
Answer: B
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. Rhinovirus is an RNA virus that causes the common cold and sinus infections. The virus does not contain an envelope. Which of the following is true of a rhinovirus?
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