Transform Boundaries The final type of boundary is one where the two plates slide against each other in a sideways motion. These boundaries between plates is referred to as transform boundaries.
The three regions of the body of the Mollusk are the head-foot, the visceral mass, and the mantle-shell.
Mollusks (Mollusca) are a group of invertebrates that includes squid, octopuses, cuttlefish, nudibranchs, snails, slugs, limpets, sea hares, mussels, clams, oysters, scallops, as well as many less well-known animals.his hypothetical mollusk has a mantle, shell, foot and visceral mass. The mantle is a layer of tissue that covers the visceral mass and in many mollusks it contains glands which secrete a hard shell. The foot is muscular structure located on the underside of the body.