What does binomial nomenclature refer to?

Binomial nomenclature is a system of naming organisms that reflects a two-word naming convention. This method, first developed by Carl Linnaeus, ensures that each species has a unique name, consisting of two parts: the genus name and the species identifier. The genus name is always capitalized, while the species name is lowercase, and both are typically italicized or underlined when written. This standardized approach minimizes confusion in scientific communication by providing a universal language for different species, making it easier for scientists globally to refer to the same organism without ambiguity. The other options do not accurately describe binomial nomenclature; for example, the categorization of species into broad groups relates more to taxonomy rather than the specific naming convention that binomial nomenclature entails.