Open Biology curriculum with free tutor support when students need help.
A biology course covering molecular biology, cells, genetics, evolution, physiology, ecology, and AP-style science practices.
Use these linked courses for video instruction and mastery practice, then return here for PeerTutor original checks and tutor help on the exact unit that got stuck.
External video content is linked or embedded through provider-hosted players, not copied. PeerTutor practice is original and cites each source path separately.
Built for independent progress first, then tutor support where the student gets stuck.
Practice: Trace how a protein's structure supports one specific function.
Practice: Predict cell behavior in different solutions and justify with osmosis.
Practice: Draw a carbon and energy flow map for a plant cell.
Practice: Build a cause-effect chain for a signaling pathway.
Need the complete source list and remaining units? Open the full Biology curriculum.
Start with the public curriculum. If a unit stalls, get targeted one-on-one support from a tutor.