In a clean size comparison, a prokaryotic cell is 2 micrometres long and a eukaryotic cell is 20 micrometres long. Enter how many times as long the eukaryotic cell is.

الشرح

The answer is 10 because 20 divided by 2 equals 10, illustrating the general tendency for prokaryotic cells to be smaller. Subtracting the lengths would give 18 micrometres, which is a difference rather than the requested size factor.