Answer:
<u><em>Hey There the correct answer would be is D. Individual organisms</em></u>
hope it helps!
Most of the carbon that's stored in plants - and in anything that eats them - is released back into the atmosphere by respiration when the organisms die and are eaten by microbes.
The answer is B
<span>The nutrient in question has an exhausted supply due to which cellular growth is limited. Usually nutrient limitation which limits productivity consist of such essential nutrients which are required by organisms in that environment to survive and grow.
Hope i helped.</span>
