Their free swimming larvae are trocophores that propulse themselves using a row of cilia that encircles the middle of their bodies.
Their free swimming larvae are trocophores that propulse themselves using a row of cilia that encircles the middle of their bodies. Important structures in adult members of this phylum include a rasping tongue-like organ called the radula and excretory organs called nephridia, which remove nitrogenous wastes through a characteristic cilia-lined funnel called the nephrostome, which makes this animal phylum the earliest to evolve an efficient excretory system. Other important structures include gills, the mantle, and the muscular foot. FTP, name this animal phylum, members of which include the bivalves, gastropods, and cephalopods, and examples of which include snails and clams.
Their free swimming larvae are trocophores that propulse themselves using a row of cilia that encircles the middle of their bodies.
phylum Mollusca or mollusks