True or False: Cardiac muscle has more mitochondria and depends less on a continual supply of oxygen than does skeletal muscle.

Cardiac muscle is known for its high density of mitochondria, which are necessary for aerobic respiration, reflecting its dependence on oxygen to produce ATP. This tissue requires a constant supply of oxygen to maintain its activity and function efficiently, as it is responsible for the continuous pumping of blood throughout the body. In contrast, skeletal muscle can switch to anaerobic metabolism when oxygen is limited, allowing it to function temporarily without a continuous supply of oxygen. Thus, the statement that cardiac muscle depends less on oxygen than skeletal muscle is incorrect, making the answer false.