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 high school, its like this: 4 Years of undergrad (towards a bachelors degree) 4 Years of medical school 5 Years of general surgery residency (Internship included) 2-3 Years (depending on the program) of a cardiothoracic fellowship. Source(s): Rohan.eport Abuse. 4 years of college, 4 years of medical school (keep in mind it is EXTREMELY difficult to get into med school.....a majority of applicants get rejected), followed by a few years of internship, and several years of residency.