Lophotrochozoan Protostomes These are bilaterally

Last updated: 7/24/2022

Lophotrochozoan Protostomes These are bilaterally symmetrical with digestive and sensory organs. Three small groups of aquatic coelomate animals possess a lophophore. They have a U-shaped lophophore with ciliated tentacles surrounding the mouth Phylum Platyhelminthes are flatworms with digestive, excretory, nervous, and reproductive systems, but that lack a Phylum Nemertea are ribbon worms with a proboscis that is used to capture food Phylum Mollusca include eight classes of animals with muscular feet and a mantle that secretes a shell and/or aids in