Web2. Body Form: The body of molluscs is un-segmented with a distinct head, muscular foot and visceral hump. Neopilina is a segmented mollusc. 3. Symmetry: They usually show … WebMollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). It includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons. Mollusca also includes some lesser known groups like the monoplacophorans, a group once thought to be ...

Mollusks display ______ symmetry. - Brainly.com

WebSea stars have perhaps the most visually obvious radial symmetry. Echinoderms begin life as bilaterally symmetrical, plankton-like larvae, but as they mature their body shape changes. Most mollusks, on the other hand, exhibit bilateral symmetry. Gastropods begin life with bilateral symmetry, but through a process called "torsion" their bodies ... WebCnidarians. The phylum Cnidaria includes animals that show radial or biradial symmetry and are diploblastic. Nearly all (about 99 percent) cnidarians are marine species. Cnidarians have specialized cells known as cnidocytes (“stinging cells”) containing organelles called nematocysts.These cells are concentrated around the mouth and tentacles of the animal … song of solomon commentary pdf

Phylum Mollusca: General Characteristics and Classification

WebIt is a soft-bodied mollusc with eight arms. Octopuses can camouflage very well in their surroundings. They have ink glands that they use to defend themselves or escape from predators. They show all the characteristic … WebThe ancestral state of this group is clearly bilateral symmetry (e.g., chitons, cephalopods, bivalves), but gastropod molluscs twist their organ systems into figure-eights, differentially develop or lose organs on either side of … WebIf you were to separate their two halves (or your two hands), each side perfectly mirrors the other, even though the shell shape itself might not be symmetrical. Bivalves are often … smallest shop vac