What term describes the study of more than one species to analyze structural similarities and differences?

The term that describes the study of more than one species to analyze structural similarities and differences is "Comparative Anatomy." This branch of anatomy involves comparing the anatomical structures of different organisms to understand their evolutionary relationships, functional adaptations, and developmental processes. By examining how different species share common structures or diverge in their adaptations to various environments, scientists can draw conclusions about evolutionary patterns and the functional significance of anatomical features. This comparative approach is fundamental in fields like evolutionary biology and paleontology, helping researchers understand how species evolve over time based on their structural characteristics.

Functional Anatomy focuses more on how various structures in an organism work together to facilitate bodily functions, rather than comparing these structures across multiple species. Phylogenetics is concerned with the evolutionary history and relationships among species, often using genetic data rather than anatomical comparisons. Biomechanics studies the movement and forces involved in biological systems; while it may consider anatomical structures, it does not primarily focus on comparing them across different species.