Multiple Choice
Which of the following organisms is using sulfur as a source of energy?
A) Thiobacillus: H₂S → S⁰
B) Desulfovibrio: SO₄²⁻ → H₂S
C) Proteus: Amino acids → H₂S
D) Redwood tree: SO₄²⁻ → Amino acids
E) Photosynthetic bacteria: H₂S → S⁰
Correct Answer:

Verified
Correct Answer:
Verified
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