Which is the correct order for classification levels?

Navigating the Tree of Life: Biological Classification

Understanding how living things are organized can feel a bit overwhelming, but biology has a neat hierarchy to make sense of it all. At the very top of this system is the Domain, which is the broadest and highest level of classification. Domains group organisms based on fundamental differences in their cell structure, splitting life into massive categories like Bacteria, Archaea, and Eukarya.

From there, the classification ladder narrows down step by step. Following the domain, the complete hierarchy flows from the broadest level to the most specific: Kingdom, Phylum, Class, Order, Family, Genus, and finally Species. Each descending step groups organisms closer together based on shared evolutionary traits, eventually pinpointing a single, distinct type of organism at the species level.