The question deals with the knowledge of the standard unit meter. By convention, micrometer or µm has been assigned to mean [tex]1* 10^{-6} [/tex] meters. Therefore, 17 µm is equal to [tex]17* 10^{-6} [/tex] meters
We divide the height of the man with the length of the amoeba to arrive at a comparison.
[tex] \frac{1.7}{17* 10^{-6} } =100,000[/tex]
ANSWER: The man is therefore 100,000 times longer than the amoeba.