i'm sure it depends on the program you are applying to, but i am a nursing student in a bsn program and i had c's in a couple of my science courses. i did well in my other classes and i was accepted. you'll do fine if being a nurse is what you wnat to do. hard work is the key to success! i have maintained an a average in nursing school, i think the prereq's are soemtiems harder than the actually nursing courses. i'm confident that i will graduate and pass the nclex (hopefully the first time around!) good luck!