Tag: invertebrate

The earthworm is an annelid. The annelids , also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 species which includes  earthworms, ragworms, and leeches. This resource includes a labeled handout (showing the following parts: mouth, prostomium, clitellum, setae, periproct) and a worksheets for students to label.