Answer the following question given this paragraph: 

There are two basic types of cells, prokaryotic cells and eukaryotic cells . The main difference between eukaryotic and prokaryotic cells is that eukaryotic cells have a nucleus . The nucleus is where cells store their DNA , which is the genetic material. The nucleus is surrounded by a membrane. Prokaryotic cells do not have a nucleus. Instead, their DNA floats around inside the cell. Organisms with prokaryotic cells are called prokaryotes . All prokaryotes are single-celled (unicellular) organisms. Bacteria and Archaea are the only prokaryotes. Organisms with eukaryotic cells are called eukaryotes . Animals, plants, fungi, and protists are eukaryotes. All multicellular organisms are eukaryotes. Eukaryotes may also be single-celled.


Q: What is the main difference between eukaryotic and prokaryotic cells?

 Choices:

- prokaryotic cells have a nucleus

- eukaryotic cells have a flagella

- eukaryotic cells have a cell wall

- eukaryotic cells have a nucleus

A:
eukaryotic cells have a nucleus
