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.
All employees must receive overtime pay unless the employer can prove that the position is exempt from the FLSA. When considering social workers there are three relevant exemptions-the so-called âwhite-collarâ exemptions-executive, administrative, and professional.