Sciences courses required for nursing: General Chem, Anatomy & Physiology I & II, General Microbiology (all of these classes with lab)
Some schools also require: Organic Chem, Nutrition, Intro to Bio
Before taking A&P it is recommended to take gen chem beforehand. At my schools, gen chem was a pre-req for A&P. At other schools, you will need gen chem & intro to bio before taking A&P.