What unit do micropipettes measure in, and what is the numerical value of this prefix?
a. Micropipettes measure volume in microliters. Micro-indicates one thousandth.
b. Micropipettes measure volume in milliliters. Milli-indicates one millionth.
c. Micropipettes measure volume in milliliters. Milli-indicates one thousandth.
d. Micropipettes measure volume in microliters. Micro-indicates one millionth.