Homologous structures such as the bones in wings, flippers, and arms are most closely concerned with

A) comparative anatomy.
B) biogeography.
C) the fossil record.
D) comparative embryology.
E) comparative biochemistry.

Homologous structures are structures that have a similar anatomical structure but may have different functions. By studying and comparing these structures in different organisms, we can gain insights into evolutionary relationships and ancestry. This field of study is known as comparative anatomy.