Biology Lab

An interactive, intuition-first study site for AP Biology: live simulations of membranes, enzymes, inheritance, evolution and ecosystems, step-by-step worked examples, randomized practice, original free-response questions and an exam builder.

Unofficial study aid. Not affiliated with the College Board. AP and Advanced Placement are trademarks registered by the College Board.

What is in it

47 modules across the eight AP units plus a short math-and-practices group (statistics, chi-square, experimental design, rates and dilutions); about 140 randomized problem generators; 10 original FRQs with point-by-point scoring guides; a "which approach?" trainer; an exam builder; equation, genetic-code and table reference sheets.

Build and test

python3 tools/mk.py   # regenerate module pages from tools/units/*.py
python3 build.py      # writes index.html (needs Python 3 and Node)
node tests/flow.js
N=400 node tests/audit.js
node tests/check.js [moduleId ...]

See CLAUDE.md for the layout and rules. localStorage keys start with bio-. Report issues with the Report an issue link on any page (opens an issue in jiacode2030/intulab-feedback).