It's different at every school. Most community colleges and universities have web pages that list the application requirements.
This is the correct answer. All schools different and should outline the requirements on their web page. In my state, most students are required to talk English 1 and 2, college algebra, elementary statistics, microbiology, chemistry I and II, biology I and II, nutrition, anatomy and physiology I and II, and an assortment of other electives such as history, speech, etc before applying to nursing school. The nursing school application here requires 2 letters of recommendation, transcripts, TEAS scores, and an essay.