Plummeting insect numbers threaten collapse of nature

[SlideRule]

Is your reference of units to system SI ? If so, there are seven basic units in the SI system:
(m) meter - length
(kg) kilogram - mass
(s) second -time
(K) kelvin - temperature
(A) ampere - electric current
(mol) mole - amount
(cd) candela - illumination;
but numbers? - hmm -

Best!
SlideRule

The ampere (A) is a measure of the amount of electric charge passing a point in an electric circuit per unit time. 6.241×1018 electrons, or one coulomb (C), per second constitutes one ampere.

another 1¢ and done