millameters
A pair of calipers or a ruler would be suitable tools to measure the size of a bull ant. Make sure to handle the ant carefully during measurement to avoid any harm.
i would use mm that is te best metric measurment you would use
For an ant farm, I would suggest a kilogram. For an individual ant, a milligram.
you would use a kilogram
length
length
3 milligrams is the weight of an average ant.
Due to their small size, you would use millimeters to measure the length of an ant.
You would use CM or INCHES to measure a knife
meter
you would use grams
cm