Do Flatworms Have One Way Digestive System?
Do Flatworms Have One Way Digestive System? Do flatworms have one way digestive system? Like the cnidarians, flatworms have a digestive system with only a single opening into the digestive cavity, but in independently living marine flatworms the cavity branches into all parts of the body (Fig. 3.37 B). These flatworms feed through a pharynx.