When a person is engaged in an exercise program the number of blood vessels and capillaries in their muscles increase. (It is estimated that there are 50,000 to 80,000 miles of blood vessels in the body). Explain the role of “increased vascularization” in increasing muscular fitness.

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

What is the name of the device that senses the current flowing,tripping the circut,and cutting off the electricity

Look at the graph about the barriers to working out. what would 20 percent of the population report as a barrier for working out? inability to devote thirty minutes a day to working out lack of interest with creating a detailed workout schedule not having enough money to pay for yearly gym membership living in a community that does not have parks or a gym facility