For a minute there I thought you knew about emryology and you could blow my whole devious plan for the destruction of the universe. Fortunately, you mistyped in the wee hours of the morning.
In other news, embryology is pretty important in general - I know I'm a fan. For the Beast, not so much. You gotta know the stuff here http://www.aamc.org/students/mcat/studentmanual/start.htm
For me, there wasn't anything I didn't know - it was more about figuring things out from what the passage tells you. Does that make sense or is it just really hot here?