A Major in Biology for the B.S. degree consists of a minimum of 42 semester hours of biology including 34 at the 300 level or above. This requirement includes introductory courses (Biology 160, 161, 162, 163) (8 hours); biology core courses (16 hours); biology electives (18 hours minimum); major field achievement test (Biology 498, which must be taken as a senior) (0 hours). After the successful completion of Bisc 160, 161, 162, 163 as initial courses, students may enroll in advanced biology courses that must include one course in each of the four B.S. biology core areas: ecology (Biology 322), genetics (Biology 336), physiology (Biology 330), and cell and molecular biology (Biology 440). Seminars and nonmajor courses do not satisfy the minimum or 300-level requirements. In addition, two courses in calculus, 8 hours of general chemistry (Chem 105, 106, 115, and 116), and two semesters of organic chemistry (Chem 221, 222, 225, 226) are required. Bisc 336 and Bisc 330 should be taken during the sophomore year, and Bisc 322 and Bisc 440 should be taken during the junior year.