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In Symbiotic Associations Between Sulfur Chemolithotrophs and Eukaryotes Such as Tube

Question 33

Multiple Choice

In symbiotic associations between sulfur chemolithotrophs and eukaryotes such as tube worms and giant clams, the bacterial symbiont provides ________ while the host provides ________.


A) nitrogen / carbon and oxygen
B) sulfide / oxygen
C) a carbon and energy source / stable sulfide and oxygen levels
D) organic acids / stable sulfate levels

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