Answer:
Transport epithelia play an important role in osmoregulation of marine fish with bony skeletons by regulating the movement of ions and water across the epithelial cells. This process helps to maintain the ionic balance between the fish's internal environment and the external environment. The transport epithelia also plays a role in regulating the osmotic pressure of the fish's body fluids, which helps to keep the fish's body fluids in balance with the surrounding environment.
Step-by-step explanation: