Utah's Great Salt Lake has an average salinity seven times higher than that of the oceans. Very few multicellular organisms live in this harsh environment. An example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. These brine shrimp must . View Available Hint(s) Utah's Great Salt Lake has an average salinity seven times higher than that of the oceans. Very few multicellular organisms live in this harsh environment. An example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. These brine shrimp must . actively pump water back into their cells to counter its loss due to osmosis actively pump salt back out of their cells to counter its inflow due to osmosis actively pump water back out of their cells to counter its inflow due to osmosis synthesize membranes that are impermeable to substances that upset osmotic balance