Which statement about methanogenic species of Euryarchaeota is false?
A) They release approximately 2 billion tons of methane annually, which is 80 to 90 percent of the methane that enters the atmosphere.
B) They occur in the guts of ruminants and other mammals.
C) They contribute to the greenhouse effect.
D) They are obligate anaerobes.
E) They reduce nitrite ions as a key step in their energy metabolism.

Question

Quizplus · Accepted Answer

Methanogenic species of Euryarchaeota do not reduce nitrite ions as a key step in their energy metabolism. They generate energy by using carbon dioxide and hydrogen or formate to produce methane.

Which Statement About Methanogenic Species of Euryarchaeota Is False