History and extraction [edit]. The name tea tree is used for several plants, mostly from Australia and New Zealand, from the family Myrtaceae, related to the myrtle.The use of the name probably originated from Captain Cook 's description of one of these shrubs, that he used to make an infusion, to drink in place of tea.ea tree oil is toxic when taken by mouth, but is widely used in low concentrations in cosmetics and skin washes. Tea tree oil has been claimed to be useful for treating a wide variety of medical conditions.
While the average beginning salary for industrial-organizational psychologists with a masterâs degree is about $50,000, experienced industrial-organizational psychologists with a doctorate degree can earn up to $250,000 per year.owever, more and more school psychologists are earning doctorate degrees in psychology (PhD, PsyD or EdD). In addition to an advanced degree, many schools also require the completion of a 60-credit school psychology specialist program.
Masters degree holders with 1 year of experience in a relevant field can anticipate $31,200 a year. Psychologists graduate salary expectations for those with Ph.D. or Psy.D. and 1 year of internship is $37,800 on average. And, psychology graduates with the same qualification and some experience could start at $45,200.