Peptidoglycan cell walls serve as evidence that the cell is from the domain Bacteria, unlike 80S ribosomes which are found in eukaryotic cells.
Peptidoglycan cell walls would be evidence that the cell is from the domain Bacteria. Bacteria are classified based on the composition of their cell walls, which typically contain peptidoglycan. This component is unique to bacteria and not found in other domains like Archaea or Eukarya.
80S ribosomes, on the other hand, are found in eukaryotic cells, not in bacteria. Eukaryotic cells belong to the domain Eukarya, not Bacteria. Therefore, the presence of peptidoglycan cell walls specifically points to the cell belonging to the domain Bacteria.
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