What system of measurement do most scientists use

In the US scientists usually use English units measurements such as ounces pounds inches and feets

I think this wou;d help
In the United States, people usually use English units of measurement such as, ounces, pounds, inches, and feet. Most other countries use metric units. Metric units include the gram, kilogram, meter, and centimeter. Scientists also use the metric system.

D-no effect on the rate