Carbon moves through the ecosystem on both short- and long-term scales. Which of the following statements BEST describes the movement of carbon through short-term time scales of the food chain?
A) Partially reduced carbon compounds from primary producers are completely reduced by decomposers.
B) Primary producers oxidize carbon compounds that were previously reduced by decomposers.
C) Primary producers fix atmospheric carbon into compounds that will be oxidized by secondary consumers.
D) Once carbon is fixed by primary producers, it will not enter the atmosphere again until broken down by decomposers.
E) None of the answer options is correct.
Correct Answer:
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