Five main systems of the body include; Nervous system, Circulatory system, Respiratory system, Digestive system and Excretory system.However another very important system; the â¦ Sensory system is present but is not among the list of first five important ones or you may call it the sixth important system.
As of 2010-2014, the total population of Clear Spring is  423, which is 7.03% less than it was in 2000. The population growth rate is much lower than the state average rate of 11.16% and is much lower than the national average rate of 11.61%.
The race breakdown of the population in Spring Valley varies per year, but currently 5,334 are one race and 64 are two or more races. Of the 5,398 people who live in Spring Valley, there are 1,435 under 20 years old. The sex breakdown of the 20 years old and younger population in Spring Valley is 713 male and 722 female.