Frickin' English Lit!! My goodness alot of schools seem to require that. But seriously it ranges. Most schools want at least 8 credits each of biology, general chem, organic chem, and physics. Then they want 6 credits of English, and several DO require English Lit to be part of that credit requirement. Then other "strongly recommend" various courses including biochemistry, anatomy, physiology, microbiology, genetics, etc. If you go on specific schools' websites they usually have all this stuff listed.