Water is absorbed from the small intestine by osmosis following the active absorption of solutes, primarily sodium chloride. REGULATION OF GASTROINTESTINAL PROCESSES Most gastrointestinal reflexes are initiated by luminal stimuli: (a) distension, (b) osmolarity, (c) acidity, and (d) digestion products.
Popular Mechanics has an article on their site describing a prototype of a designed from scratch Mastercraft wakeboard-specific Boat called the X-Trek. The boat has a unique design and layout from normal wakeboard boats, and it will be interesting to see this boat in reality.
This specialized ski boat has the engine in the stern and a V-drive, a towing arch and a towing pylon in the stern of the boat. Note the rack for wakeboards which means this boat is used for both sports. Inboard Power. Virtually all boats built specifically for skiing and wakeboarding have a single inboard engine.