These acoelomate organisms use (*) ocelli and auricles to sense light and sound.
One genus of organisms in this family commonly used in experiments is Dugesia. These organisms, which belong to the subgroup Turbellaria, lack an epidermic cuticle and possess cilia and microvilli used for motion. These acoelomate organisms use (*) ocelli and auricles to sense light and sound. They can regenerate large parts of their bodies, including the head, and some of them were ground up and fed to others in a series of biological memory experiences performed by McConnell and Thompson. For 10 points, name this family in the phylum Platyhelmenthes that includes non-parasitic flatworms.
One genus of organisms in this family commonly used in experiments is Dugesia.
{Planarians} [or {Planariidae}; prompt on {flatworms}]