Explain how the method of mark and recapture works to determine population size

      N = MC/R

Where; N is the population size estimate,

            M is the total number of organisms captured and marked during                                 the first time,

             C is the total number captured the second time, and

             R is number of marked organisms recaptured during the second time.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.