The Last Common Ancestor gave rise to the cells in the three domains that we recognize today; bacteria archaea and eukaryotes.

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This is a widely accepted theory of the origin of life, known as the "Three Domain Hypothesis" or "Carl Woese's Tree of Life". It suggests that all life on Earth can be traced back to a single common ancestor that existed approximately 3.5 to 4 billion years ago. From this common ancestor, three distinct branches, or domains, emerged: Bacteria, Archaea, and Eukarya.

The Last Common Ancestor Gave Rise to the Cells in the Three