A typical mammalian cell has a volume of 10 000 fL10\,000\text{ fL}10000 fL (femtolitres), while a typical bacterium has a volume of 1 fL1\text{ fL}1 fL.
By how many orders of magnitude is the volume of a mammalian cell greater than that of a bacterium?
3
4
10
10 00010\,00010000