Consider the picture of the carbon cycle. carbon dioxide is a small portion of the gases in our atmosphere. carbon dioxide is naturally added when organisms respire. it is removed naturally when plants and other producers undergo photosynthesis. what is one way that humans are adding great quantities of carbon dioxide to the atmosphere? use the model to you. what example do you see?

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.