I think I'm gonna take AP biology in my senior year for my science class. What's the difference between AP biology and biology 1? Should I take AP biology in 12th grade? My high school doesn't offer zoology, genetics, etc. The only classes that sound to me like they'll help are AP biology and environmental systems/AP environmental science, and I'm pretty sure AP biology wold be better. If you're gonna ask if they have biochemistry or something like that, don't, because they don't. They DO have AP chemistry, AP physics, and Anatomy and physiology of human systems, but those might not be as helpful as AP biology.