So I probably should have looked at ALL the prerequisite courses for the schools I was applying to before I applied, but are all of these prereqs set in stone? There are some classes that I simply CANNOT take in time. Midwestern requires 4 credits of Anatomy with lab and 4 credits of Physiology (I have NO ANATOMY and only 3 of Physiology). Arizona requires 4 credits of HUMAN Physiology (I have 3 credits of Animal Physiology). Boston requires 8 credits of Calculus (I only have 4). I have not slacked off in the sciences either, I have just been required to take different classes for my major. I have heard back from all of these schools so far with no mention of missing classes. What should I do?