Index of Experiments. Home of CELLS alive! AP Biology Teaching & Learning Resources. Welcome! Here you will find copies of most of the labs and activities that we perform in class. Some are only available from the AP Lab book, so I cannot post those online. Anatomy & Phyiology The Effects of Stimulants & Depressants on Heart RateThis is a wonderful lab developed by Paula Donham (Olathe East High School, Kansas). She has given me permission to share it. AP WebLabs.