Question

What is one component of a cell that distinguishes all three domains from each other?

Answer 1

The one component of a cell that distinguishes all three domains from each othe is the nucleus

Answer 2

The correct answer is the composition or components of the cell wall (if present).

Explanation:

The common component of all three domains, Archaea, Bacteria and eukarya, is cell wall composition (if present), Archaea cell wall has peptidoglycan, whereas the Eukarya cell wall has polysaccharides (if present). Bacteria cell contains neither polysaccharides nor peptidoglycan in their cell wall.

Thus, The correct answer is composition or components of the cell wall (if present).