The science of biological classification?

• A. Taxonomy
• B. Binomial nomenclature
• C. Taxon
• D. Catastrophism

Answer: (A)

Taxonomy is the science that names, describes, and classifies organisms, organizing life into a hierarchical system that reflects relationships and shared traits. This makes it the best answer because the question points to the discipline itself responsible for biological classification, not just a naming convention or a unit within that system. Binomial nomenclature is the two-part naming method used within taxonomy to give species their formal names, so it’s a tool or method within the field rather than the field itself. A taxon is any named group at a level of the classification (like genus or species), not the scientific discipline. Catastrophism is a geological idea about Earth’s history and has no direct relation to how organisms are classified.