The body's physical response to the need for food

Answer in a couple of paragraphs, 1 or 2 at the most if anything! 20 points + brainliest--> explain what all the systems in your body do to work together < --list of systems needed: circulatory systemrespiratory systemdigestive systemexcretory systemnervous system

Mechanical sissy washers are required to have

To increase the amount of fibers in a muscle, you need to exercise at low intensity for increasingly longer periods of time.