Which of the following is true? question options: water is important to some organisms. some substances must be dissolved in water before they can be used. all organisms obtain water through food. plant cells are unaffected when water is scarce.

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

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?