Which statement is TRUE of methanogenic and extremely halophilic Archaea?
A. The methanogens are obligate aerobes; the extreme halophiles are obligate anaerobes.
B. The methanogens are obligate anaerobes; the extreme halophiles are mostly obligate aerobes.
C. Both the methanogens and the extreme halophiles are obligate aerobes.
D. Both the methanogens and the extreme halophiles are obligate anaerobes.
Answer:B
Which statement is TRUE of methanogenic and extremely halophilic Archaea?
A. The methanogens are obligate aerobes; the extreme halophiles are obligate anaerobes. B. The methanogens are obligate anaerobes; the extreme halophiles are mostly obligate aerobes. C. Both the methanogens and the extreme halophiles are obligate aerobes. D. Both the methanogens and the extreme halophiles are obligate anaerobes.