What is binomial nomenclature?

• A. Genetic makeup
• B. Observable traits
• C. Two-part scientific naming system
• D. Physical structure

Answer: (C)

Binomial nomenclature is the two-part scientific naming system used to give every species a unique name. The first part is the genus, the second part is the species descriptor (epithet), and together they form the formal name of the organism. Names are typically Latin or Latinized, with the genus capitalized, the species epithet in lowercase, and the full name often italicized. This approach lets scientists worldwide refer to the same species without confusion, regardless of local common names. For example, humans are labeled Homo sapiens, domestic cats as Felis catus, and domestic dogs as Canis lupus familiaris. The other options describe genetic makeup, observable traits, or physical structure—characteristics of organisms—rather than how we name them.