A student made a model of a cell. First, she filled a plastic bag with gelatin. Then she added a rubber ball. What are two limitations of the student's cell? A. The model does not show how a real cell gets the energy it needs to live.

B. The model does not show that cells can contain smaller structures inside them.

C. The model is made up of materials that are different from those found in real cells.

D. The model is not as easy to see and hold as a real cell is.