A student is looking through a microscope at stained cells that appear to have a stiff
 outer edge and smaller structures inside, including a large rounded object near the
 center. What type of cell would the student expect these cells to be, and why?
 A
 Prokaryotic, because only prokaryotic cells have cell walls.
 B
 Prokaryotic, because prokaryotic cells have ribosomes.
 Eukaryotic, because only eukaryotic cells have cell walls.
 D
 Eukaryotic, because only eukaryotic cells have a nucleus and organelles.