Question

what do eukaryotic cells have that prokaryotic cells do not?
a cells
b dna
c endoplasmic reticulum (er)
d ribosomes

Explanation:

Eukaryotic cells have membrane - bound organelles like the endoplasmic reticulum. Prokaryotic cells lack membrane - bound organelles. Both have cells, DNA, and ribosomes.

Answer:

C. endoplasmic reticulum (ER)