Need n fast:
which statement explains how producers are dependent upon consumers for their survival?
consumers supply oxygen for producers to undergo aerobic respiration.
consumers produce carbon dioxide for producers to use during
photosynthesis.
consumers provide chemical energy needed by producers for cellular
respiration
consumers make lactic acid that producers use in photosynthesis.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. show the flow of energy in the following ecosystem by labeling each organism's link in the food chain. click once to select a label. click again to place the label in the correct location.