What does the binomial system of nomenclature consist of?

• A. A combination of the genus and species name
• B. A single name
• C. A family and genus name
• D. A genus and subspecies name

Answer: (A)

The key idea is that each species gets a two-part Latin name: a genus name and a species epithet. The genus groups closely related organisms, and the species epithet identifies the specific species within that genus. Put together, they form a unique, universally used label (for example, Homo sapiens). This two-term format distinguishes binomial nomenclature from systems that use a single name, or that mix in higher ranks like family, or add a third term for subspecies. The convention is typically written with the genus capitalized and the species epithet in lowercase and often italicized, reflecting its Latin roots and helping ensure precise, global communication.