👉 Leeching is a biological process that occurs in the marine environment. It involves the movement of water through a structure called an exoskeleton, which can be either a sponge or a leech. The leeches use their tentacles to pull on the water and create a pressure gradient. This pressure causes the water molecules to move away from each other, creating a net effect that increases the amount of dissolved oxygen in the surrounding water. The process is essential for many marine organisms, including fish
