In a population of sunflowers, short plants tend to die young because they are shaded out by taller plants. Tall plants also tend to die young because they
fall over easily in high winds. Therefore, most sunflowers are of medium
height. Which of the following types of evolution has this sunflower
population undergone?

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?