Final answer:
The Last Universal Common Ancestor (LUCA) would more closely resemble a bacterial cell rather than a eukaryotic cell. LUCA existed around 3.5 billion years ago and was one of the earliest prokaryotic cells.
Step-by-step explanation:
The Last Universal Common Ancestor (LUCA) would more closely resemble a bacterial cell rather than a eukaryotic cell. LUCA existed around 3.5 billion years ago and was one of the earliest prokaryotic cells, lacking a nucleus and other membrane-bound organelles like eukaryotic cells. Bacterial cells also have unique features such as an outer cell wall, a circular DNA chromosome, and the absence of membrane-bound organelles.