How does the position of the mouth differ between the panarian,tapeworm, and fluke?

Question

Planarians are on the underside but not seeing the differences with the other two

Answer 1

A planarian's mouth is located in the center of the organism on the underside of its belly. Tapeworms have no mouth and absorb nutrients directly. And a fluke's mouth is located within the anterior sucker on the ventral side.