Q: Unlike prokaryotes, eukaryotes have a what?


Read this paragraph and choose the correct option from the provided answers:

Eukaryotes evolved about 2 billion years ago. Unlike prokaryotes, eukaryotes have a cell nucleus. They have more structures and are better organized. Organelles within a eukaryote can perform certain functions. Some supply energy; some break down wastes. Eukaryotes were better able to live and so became the dominant life form. You can see an example of a eukaryotic cell below ( Figure below ).

 Choices:

- flagellum

- cell wall

- mitochondria

- cell nucleus


A:
cell nucleus