Answer:
Aerobic respiration is 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.
the controlled variables are, timing of adding ice, water used, and amount of sugar. the dependant variables are, daily temperature, and amount of lemon juice. the independent variable is, number of glasses sold. hope it helps
please mark brainlyist
I believe it's oxygenated or oxygen rich blood away from the heart.
