Structures that share a common evolutionary origin are called homologous structures.

Here's a breakdown:

* Homologous structures are similar in structure and origin, even if they have different functions. This similarity is because they are derived from a common ancestor.

* Example: The wing of a bat, the flipper of a whale, and the human arm are all homologous structures. They have the same basic bone structure, even though they are used for different purposes.

Let me know if you'd like to know more about homologous structures or other evolutionary concepts!