Ap bio is not on the same level as college level bio for med school prerequisites. Normally there is a bio class in college for general studies that is not for bio majors or fufill med school prerequisites. The ones for the med school are more intense and detailed. To take bio with org chem will be a real challenge and CS classes are very time consuming, my advise is if she can spread out these in different semesters if possible. I suspect the bio for bio major and org chem are weed out classes in Vandy so try not to lump those together. There is no rush to apply for med school, it is normal to apply after completion of 4 years college.