Final answer:
The levels of classification used for an organism's scientific name in binomial nomenclature are the genus and species. Genus species. This naming system was developed by Carl Linnaeus and continues to be the standard for identifying and classifying organisms. The correct answer to the question is D Genus species.
Step-by-step explanation:
In biology, the system for naming species is known as binomial nomenclature. This system gives each species a two-part name, consisting of its genus and species. This naming convention was developed by Carl Linnaeus, and it is the standard format for classifying organisms. The correct answer to which levels of classification are used for an organism's scientific name is D. Genus species. For example, the house cat is scientifically named Felis catus, and humans are named Homo sapiens.
A species is the most specific level in the taxonomic hierarchy and can be defined as a group of individuals capable of fertile interbreeding. The genus is a group that includes one or more species that are closely related. In Linnaeus's classification system, similar species are put together within a genus, and these similar genera are then put together into a family.
Therefore, when we are referring to the scientific name of an organism, we are talking about the unique two-part name that combines its genus and species. This is key to the Linnaean system for classifying living things, which assigns a universal scientific name to each organism.