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.
If you are in a salaried position I think you are considered white collar.. If you are payed by the hour I think you are considered blue collar.. Sep 3, '04. I think most of us think of ourselves as white collar, even those of us at the bedside. But we are treated by management and administration as blue collar.