Math majors and physics majors have to take introduction to biology as a graduation requirement. This biology class is the one required for biology majors. It is the first class in Bio majors sequence. I am spending some considerable time on the material, almost all my studying time, and I am having difficulty understanding the material. I currently have a high B in the course. This B is largely thanks to my grade during lab. I am dull majoring in mathematics/physics. In my math/physics and doing extremely well. These are all upper division courses. I am even taking an intro to Graph Theory (theoretical). It is a bit odd to me that I am doing well in math/physics, but having a hard time with intro bio. Is this a common scenario for math/physics majors?