The Physics 205/206 and 210/211 sequences are intended for biology majors. If you're an engineering major, you should be in Physics 221. If you just need a gen ed class, you should be in Physics 130. Physics 205/206 satisfies your physics requirement if you're a biology major transferring to a Cal State. The prerequisites for 205 are Math 141 (precalculus) and Math 142 (trig). Physics 210/211 satisfies your physics requirement if you're a biology major transferring to a UC (or a Cal State). The prerequisites for 210 are Math 141 (precalculus) and Math 142 (trig), and the corequisite is Math 150A (calculus).