What is one hypothesis to explain the diversity of life (especially the honeycreepers) on the Islands? Isolation from parent population and random mutation caused the populations of honeycreepers to evolve and become different enough to be considered a new species.

Isolation and lots of predators played a major role in creating new species of honeycreepers

The islands started out extremely bare, so it was really hard for any mammals to get to the island.

All of the above

Na+ loss through sweet plus the dilution has lowered na+ concentration outside of neurons, altering the na+ equilibrium potential. sodium exists more outside the cells than inside. when na+ is lost by sweat plus the dilution( because they drink a lot of water) changes the concentration outside the cell, forcing the water to enter the cell and attempt to balance the concentration inside/outside.the problem is that the abundance of water will cause the cells to swell. most cells can adapt, however, the brain cells can't that's why the runner has confusion and can't control the muscles.  if not treated and this occurs in less than 48 hours, it can be immediately fatal .