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.
DEFINITION of 'White Collar'. A working class that is known for earning high average salaries and not performing manual labor at their jobs. White collar workers historically have been the shirt and tie set, defined by office jobs and not getting their hands dirty (or their white collar dress shirts). This class of worker stands in contrast to blue collar workers, who traditionally wore blue shirts and worked in plants, mills and factories. Next Up.
Blue collar jobs are any type of employment situations that involve manual labor that is compensated with an hourly wage rather than a salary. There are a number of different types of jobs that fall into this category, many of which provide a steady and attractive amount of income. Some of the more common examples of blue collar jobs are found in construction, mechanical repairs, plumbing, and electrical work. When many people think of blue collar jobs, the image of a worker in a manufacturing plant often comes to mind.