In taxonomy, the term 'genus' designates which level of classification?

• A. Domain
• B. Species
• C. Genus
• D. Family

Answer: (C)

Organisms are arranged in a ranking from broad to specific. The genus is the group that contains species that are very closely related and share key traits, reflecting a common lineage. It sits above species but below family. In binomial names, the genus is the first word, indicating which genus the organism belongs to; for example, in Homo sapiens, Homo designates the genus. This naming convention shows why the genus is the level designated by the term itself. Higher ranks like Domain include many families and genera, while Family groups several genera; Species is the most specific level. Thus, the term 'genus' designates the genus level.