The presence of nucleus would be most helpful in classifying a cell as either prokaryote or eukaryote.
Prokaryote are those organisms that possess cells that lack membrane bound organelles.
They are usually single cell organisms.
Typical examples include:
Eukaryote are those organisms that possess membrane bound organelles. They contain a central nucleus which is surrounded (bound) by a membrane called nuclear envelope.
Examples of eukaryotes include:
Therefore the presence of nucleus would be most helpful in classifying a cell as either prokaryote or eukaryote.
Learn more here:
https://brainly.com/question/17353812
