By the way major in whatever you want, they aren't going to care if your major was "hard" all they will see is your GPA and coursework. Some pre-meds specifically in the first year of college think they will be more competitive if they major in something hard like in engineering, that admissions committees will see them as more appealing. This is not the case. So if you got a 3.5 in BME and someone else got a 3.9 in a plain old biology major, all other things being equal, the bio major looks a lot better.