Features

Bacteria

Archae

Eukarya

Cell Size 

4 - 5

4 - 5

6 - 7

Membrane-enclosed nucleus with nucleolus

No

No

Yes

Complex internal membrane bounded by organelles

Britannica Online - School Edition

This online encyclopedia provides access to up-to-date reference articles and related web sites and media, plus a world atlas and a dictionary.

No

Yes