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.
Artificial intelligence and robots are not just challenging blue-collar jobs; they are starting to take over white-collar professions as well. Financial and sports reporters, online marketers, surgeons, anesthesiologists, and financial analysts are already in danger of being replaced by robots. While one camp of experts predict that several unlucky Americans will be pushed out of work in the near future, others argue that this increase in computing prowess will simply eliminate old jobs and introduce new ones, resulting in a net-zero effect â or even an increase in jobs.