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.
The cast of White Collar. left to right: Sharif Atkins, Marsha Thomason, Tiffani Thiessen, Tim DeKay, Matt Bomer, Creator Jeff Eastin, Producer Jeff King, and Willie Garson This is a list of characters in the USA Network original comedy-drama TV series White Collar.