The "term" is compound exercise... dynamic means something pretty different, but don't worry about it ;)

How high is your body fat? You don't look fat at all. I would say that healthy (and optimal for anything other than winning a bodybuilding contest) is 10-12%. Everything I've read seems to point to this range being the best of both worlds (there are obvious down sides to being tubby and there are some down sides to being too thin).