What two features do eukaryotes have that prokaryotes do not have?

Eukaryotes have a defined nucleus that houses their genetic material, while prokaryotes possess a nucleoid region without a membrane-bound nucleus. Additionally, eukaryotic cells contain membrane-bound organelles, such as mitochondria and the endoplasmic reticulum, which are absent in prokaryotic cells. These structural differences contribute to the complexity and functionality of eukaryotic organisms compared to prokaryotes.