They are primarily responsible for maintaining and changing posture, locomotion, as well as movement of internal organs, such as the contraction of the heart and the movement of food through the digestive system via peristalsis.
Internet Users in the U.S.A. (2016*) 1  Share of U.S. Population: 88.5 % (penetration) 2  Total Population : 324,118,787. 3  Share of World Internet Users: 8.4 4  %. Internet Users in the World: 3,424,971,237.
Research Brief. A 2011 Pew Research Center study found that 61 percent of Americans believe that the Internet exposes them to greater diversity in political views than they would be exposed to otherwise, but 54 percent believe that the Internet makes it easier for them to connect with others with similar political views.