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.
Snails, oysters, clams, octopuses, and squids are examples of mollusks. â¢ The body cavity in mollusks is a true coelom. â In animals that have a coelom, the gut and other internal organs are suspended from the body wall and are cushioned by the fluid within the coelom. Respiration â Most mollusks respire with gills, which are located in the mantle cavity. The mantle cavity is a space between the mantle and the visceral mass. â Mollusk gills extract 50% or more of the dissolved oxygen from the water that passes over them.