WebJun 15, 2024 · Characteristics of mollusks. Mollusks are characterized by being triblastic, coelomate, protostomate and have, at least initially, bilateral symmetry. This group has both aquatic (marine and freshwater) and terrestrial representatives. In general, mollusks have a body divided into three zones: the head, the foot and the visceral mass. WebDec 11, 2015 · The excretory system of mollusks is made up of tubular organs called nephridia that filter waste from internal body fluids. Waste generated by cells within the organism is dumped into the coelom, the fluid-filled internal body cavity. The nephridia are small tubes that open into the coelom.
Mollusk Structure and Function - Advanced ( Read ) Biology
WebThe three most universal features defining modern mollusks are: a mantle with a cavity used for breathing and excretion, the presence of a radula, and; the structure of the … Webthe author outlines the success of parasitism as a mode of life, the common features of the wide range of organisms that adopt such a way of life, the reasons for parasites' extraordinary potential for continued adaptive ... molluscs and crustacea. The chapters covering ecological, zoogeographical and economic aspects have also been ... easy cheap paleo family meal recipes
Mollusks and Annelids – Introductory Biology: …
WebThe mollusks are a diverse group (85,000 described species) of mostly marine species. They have a variety of forms, ranging from large predatory squid and octopus, some of which show a high degree of intelligence, to small grazing forms with elaborately sculpted and colored shells. WebMar 5, 2024 · Most mollusks have tentacles for feeding and sensing, and many have a muscular foot. Mollusks also have a coelom, a … WebMollusks have a muscular foot, which is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study. In shelled mollusks, this foot is usually the same … easy cheap party snacks