The alactic anaerobic system, also known as the phosphagen system or ATP-CP system, represents an immediate source of energy for active muscle.
What are the by-products of the three energy systems?
With this information, we can conclude that the alactic anaerobic system, also known as the phosphagen system or ATP-CP system, represents an immediate source of energy for active muscle.
Learn more about ATP in brainly.com/question/174043