Examples of homeostasis include the regulation of body temperature, the pH of extracellular fluid, or the concentrations of sodium, potassium and calcium ions as well as that of glucose in the blood plasma, despite changes in the environment, diet, or level of activity.
Blue-collar workers perform labor jobs and typically work with their hands. The skills necessary for blue-collar work vary by occupation. Some blue-collar occupations require highly skilled personnel who are formally trained and certified.
To get a sense of some of the best paying blue collar jobs, Forbes took a look at the most recent Occupational Employment and Wages data from the BLS, reflecting May 2015 salary and employment data, excluding work thatâs management or supervisory-focused.