On what basis are all living organisms divided into two groups – prokaryotes and eukaryotes? What are their fundamental differences?

By the structure of the cell, biologists divide all living things into “pre-nuclear” organisms – prokaryotes and “nuclear” – eukaryotes. All bacteria and blue-green algae (cyanae) were included in the prokaryotic group, and fungi, plants, and animals fell into the eukaryotic group.
Thus, at present, two levels of cellular organization and, accordingly, two large types of cells are distinguished: prokaryotic and eukaryotic.
Prokaryotic organisms retain the features of the most ancient times: they are very simple in structure. On this basis, they are singled out as an independent supra-kingdom.

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