Around hot water vents deep in the ocean live specialized communities. Bacteria turn hydrogen sulfide into reduced carbon compounds through chemosynthesis. The bacteria then provide food to other life forms. Compared to terrestrial food chains, the bacteria fill the same role as
A)heterotrophic tertiary consumers
B)heterotrophic secondary consumers
C)heterotrophic primary consumers
D)anaerobic decomposers
E)autotrophic primary producers
Answer: E
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