The graphs below show total nutrient uptake by plants and net dissolved nutrients in the stream draining an undisturbed (control) watershed.
Now consider a scenario in which a watershed is treated with a chemical that kills only decomposers. Decomposers are eliminated from the treated watershed for three years. How will eliminating decomposers affect nutrient uptake by plants and net dissolved nutrients in the stream draining the watershed?
Drag one graph from the top row and one graph from the bottom row to the targets on the right to predict how eliminating decomposers would affect nutrient uptake and dissolved nutrients.
