- Binomial nomenclature is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. - The first part of the name is the genus name, and the second part is the specific epithet (often called the species name). - The genus name is always capitalized, and the specific epithet is not. - Both parts are italicized when printed (e.g., Homo sapiens) or underlined when handwritten. - This system was largely standardized by Carl Linnaeus in the 18th century. - Options B, C, and D describe incorrect origins or structures for biological names.