The methanogens
A) are part of the Archaea.
B) oxidize hydrogen gas to produce methane.
C) appear only in aerobic environments.
D) use oxygen as a terminal electron acceptor.
E) are part of the Archaea AND oxidize hydrogen gas to produce methane.
Correct Answer:
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Q4: Clostridium,Lactobacillus,and Propionibacterium all
A)use sulfur compounds as terminal
Q6: It has been estimated that 99% of
Q7: Hydrogen sulfide
A)is produced when sulfur compounds are
Q9: Cyanobacteria
A)are a form of algae.
B)are prokaryotes.
C)use hydrogen
Q10: Which of the following microbes is(are) important
Q11: Anoxygenic phototrophs
A) produce oxygen.
B) use water as
Q13: Methanogens often grow in association with
A)nitrifying bacteria.
B)lithotrophic
Q16: Which of the following contains bacteriochlorophyll?
A) Bacillus
Q18: The earliest oxygenic phototrophs are thought to
Q19: Propionibacterium
A)produces propionic acid.
B)produces lactic acid.
C)is responsible for
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