This one? https://www.khanacademy.org/science/high-school-biology 

Please keep the deprecated high school biology course because it is still valuable alongside the new version. The deprecated course has what I, and probably many, need and want.
Thanks, Khan Academy

I use the High School (depreciated) course for bio remediation for the keystone exams. It is more aligned to the exam. Also, the new high school questions, although more interactive, lend itself to getting incorrect if needing to toggle 6 answers in a single question. Please keep the old high school (depreciated) course. I can not load it into the system now.