From what structure did the dens arise developmentally

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

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?

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?