What is your mneMonic of the classification of all

living organisms?

The correct answer is "KPCO and FGS".

Explanation:

There are seven major levels at which all living organisms are classified: Kingdom, Phylum, Class, Order, Family, Genus, and Species. My mneMonic to remember this order is to divide the levels in two groups "Kingdom, Phylum, Class and Order", and "Family, Genus, and Species". Then the initials are easier to remember: KPCO and FGS. Additionally, "Kingdom, Phylum, Class and Order" are terms related to royalty and politics.