Multiple Choice
Anoxygenic phototrophs
A) may use a variety of electron donors for photosynthesis.
B) are an ancient monophyletic group of bacteria.
C) can be either autotrophic or heterotrophic.
D) can be either autotrophic or heterotrophic and may use a variety of electron donors for photosynthesis.
Correct Answer:

Verified
Correct Answer:
Verified
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