Ground squirrels living on the south side of the grand canyon in arizona never have an opportunity to mate with ground squirrels living on the north side of the canyon. which term is used by evolutionary biologists to describe this phenomenon?

Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?