Planarians

Planarians are flatworms that can be used to study the effect of different substances on the nervous system. In this remote laboratory, you can choose the solution into which to place the planarian worms. The solutions are aqueous and have different exitatory or inhibitory substances, with different concentrations, dissolved into them.

In this version of the planarians laboratory there is a manual tally counter that students can use to count the number of times the planarians cross a line (to estimate their activity level).