Consider the classification levels of a human.
eukarya
animalia
chordata
mammalia
primates
hominidae
homo
sapiens
which is the most specific taxonomic level in the classification system above? sapiens
homo
hominidae
primates

Sapiens is the most specific taxonomic level in the classification system as mention in the question. This is because the species are the most specific taxonomic level in classification system which indicates that the sapiens are the species that make species are most specific taxonomic level.

Eukarya is domain. Animalia is kingdom. Chordata is phylum. Mammalia is class. Primates is order. Hominidae is family. Homo is genus and sapiens is specie therefore it is described that the species are most specific.

There are taxonomic levels are explained: Kingdom, phylum, class, order, family, genus, specie.

a physical change is being made.