How do the systems differ between some of the classes of mollusks?
Compare the digestive, excretory, and reproductive systems of Porifera, Cnidaria, and Platyhelminthes. Each mollusk has a foot, head, visceral mass, and a mantle. Describe the anatomy of a mollusk. Explain how the different systems function. How do the systems differ between some of the classes of mollusks? Describe in detail the life stages of arthropods. […]


