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    Microbiology An Evolving Science
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    Exam 17: Origins and Evolution
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    Which of the Following Did Early Methanogens Use from the Early
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Which of the Following Did Early Methanogens Use from the Early

Question 43

Question 43

Multiple Choice

Which of the following did early methanogens use from the early atmosphere to generate energy?


A) CO2 and H2
B) H2O and O2
C) CH4 and CO2
D) N2 and O3
E) O2 and H2

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