Which phrase correctly defines taxonomy?

• A. The Science of Evolution
• B. The Science of Classification
• C. The Study of Ecosystems
• D. The Study of Chemical Reactions

Answer: (B)

Taxonomy is the science of classifying organisms into groups based on shared traits and evolutionary relationships. It provides a systematic way to organize the vast diversity of life, using a hierarchical framework (like species, genus, family) to name and place organisms in meaningful categories. That’s why the phrase that defines taxonomy best is the science of classification—you're describing the process of sorting living things into categories so scientists can communicate clearly about who is related to whom. The other options point to different fields: evolution studies how species change over time; ecosystems focus on interactions within environments; chemical reactions deal with changes in matter at the chemical level.