What two levels make up the binomial nomenclature of grizzly bear?

The binomial nomenclature of Grizzly Bear is Ursus arctos.

There are seven level of classification. Ursus arctos is composed of 2 levels, namely Genus and Species.

Here is the classification of the grizzly bear.

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Carnivora

Family: Ursidae

Genus: Ursus

Species: U. arctos ssp.