What do eukaryotic cells have that prokaryotic cells do not?

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

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

As kate is moving down the hill, what type of energy does she have? a. sound energy b. electrical energy c. light energy d. mechanical energy