Final answer:
To convert 25 micrometers to meters, multiply by 1x10^-6 to get 0.000025 meters.
Step-by-step explanation:
Myles has measured a diatom cell that is 25 um long. To convert micrometers to meters, we use the conversion that 1 micrometer (µm) is equal to 1x10-6 meters.
Therefore, to convert 25 micrometers to meters, the calculation would be:
25 µm * 1x10-6 meters/µm
= 0.000025