Assume that the sulfur conversion rate at site Gamma increased to 700 μmol / m squared /hr. What would most likely happen to biomass supported at that site?

A higher sulfur conversion rate means more chemical energy is being made available to microbes at site Gamma. With more energy available, the microbes can support greater biomass, so it would most likely increase. This matches choice C, “It would likely increase as more energy becomes available.”

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