What kind of organism is used to produce human insulin

Some tools have graduations to show multiple measurements. for example, a ruler may have graduations for both millimeters and centimeters. when measuring the length of an earthworm, which graduations would allow for the most accurate measurement? millimeters centimeters decimeters meters

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?

Identify the product of genetic engineering.