Question

E.coli cell is 1.62 micrometers long

the average women are 1.62 meters tall

- how many e.coli stacked end to end would be as tall as the average American women

Answer 1

The average height of American women = 1.62 meter

The length of E. coli = 1.62 micrometer = 1.62 * 10^-6

Now, the number of E. coli needed to stack end to end to make it tall as the average American women = 1.62 / 1.62 * 10^-6

= 1 * 10⁶

= 1 million

Thus, 1 million E. coli is needed to stack end to end to make it 1.62 meters long which is equal to the length od average height of American women.

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