What three steps describe how an animal obtains and uses energy for growth

The first step of the energy usage for growth is the breakdown process. In order the animal cells can use the food, the food they eat must be broken down into smaller molecules. Step 2 is the process glycosis which converts each molecule of glucose into two smaller molecules of Acetyl CoA. Step 3 is the complete oxydation of acetyl, CoA to H2O.

The light is great source of energy

Active site is where they touch.