WebFeb 25, 2024 · Mollusks are soft-bodied invertebrates that inhabit marine, freshwater, brackish waters, or land environments. Mollusks examples include snails, octopi, … Webwhat are some advantages of a coelom over a pseudocoelom. 1. muscles of body wall are separated from those of gut. 2. provides space where circulatory system can transport blood without interference from other internal organs. what is the larval stage of development shared by most mollusks and annelids. trochophore.
Seashell Definition, Types, & Facts Britannica
WebThis enormous phylum includes chitons, tusk shells, snails, slugs, nudibranchs, sea butterflies, clams, mussels, oysters, squids, octopuses, and nautiluses. Molluscs display a wide range of morphologies in each … Webmalacologist—a scientist who studies mollusks (the Phylum of animals that includes land snails). mantle—the membrane–like organ that builds the shell in shelled snails, found around the aperture. The mantle is also present in slugs, where it serves as a dorsal covering. margin—edge. matte—a non-reflective shell finish. Dull, not shiny. floodgate app
Common Name: Blue mussel SGCN Scientific Name: …
WebOperculum (gastropod) Shell of marine snail Lunella torquata with the calcareous operculum in place. Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place. The operculum (from Latin operculum 'cover, covering'; PL opercula or operculums) is a corneous or calcareous anatomical structure like a trapdoor … WebJun 8, 2024 · Bivalvia is a class of marine and freshwater molluscs with laterally compressed bodies enclosed by a shell in two hinged parts. Bivalves include clams, oysters, mussels, scallops, and numerous other families of shells. The majority are filter feeders and have no head or radula. The gills have evolved into ctenidia, specialised organs for ... WebDec 13, 2024 · Common Name: Mollusks or molluscs. Basic Animal Group: Invertebrate. Size: Microscopic to 45 feet in length. Weight: Up to 1,650 pounds. Lifespan: Hours to centuries—the oldest is known to have lived … flood furniture