the process of producing cellular energy involving oxygen. Cells break down food in the mitochondria in a long, multistep process that produces roughly 36 ATP. The first step in is glycolysis, the second is the citric acid cycle and the third is the electron transport system.
-Brightstorm
C.35%
If you divide the number of hearts drawn by the number of total draws you get your answer.
14/20=0.35
