This is Circulation !!
Pathway of the blood from Heart to Lungs to Heart then the whole body !!
I dont know what <span> ketogenic or glucogenic is.</span>
Geothermal energy maybe is their answer choices
Answer:
C. running a marathon
Explanation:
When you run a marathon you eventually switch to anaerobic respiration since not enough oxygen is present for aerobic respiration to occur (which uses oxygen as the last electron carrier in the electron transport chain). This process causes lactic acid to be produced.
