The Largest division in the geological time scale is the Precambrian Era.It lasted from around 4.6 billion years ago to 570 million years ago.
To become a Plastic Surgeon, one must complete a residency program in General Surgery. Dr. Jon Trevisani completed his General Surgery Residency Program at University of Kansas Medical Center in Kansas City, Kansas. The General Surgery Residency Program is 5 years which he becomes a General Surgeon. To enter the field of Plastic Surgery requires special training in called a Fellowship Training and/or advanced training Plastic and Reconstructive Surgery Residency Program which is 2 years.
After school, the future surgeon attends a surgical residency program which is typically 5 years. There are several different types of residencies including general surgery, orthopaedic surgery (bones, joints, tendons), neurosurgery (brain, spinal cord) and more.ike most physician jobs, being a surgeon is more than a forty-hour per week job. Most surgeons work 50-60 hours weekly, including on-call time, administrative duties, and other responsibilities.