So even though they evolved from different ancestors, porpoises and sharks developed analogous structures as a result of their evolution in the same aquatic environment.

In the central nervous system, the analogous structures are known as tracts.

That is, characteristics do not hold to evolutionary convergence, and do not have analogous structures.

The trees adapted in response to these ecological drivers by developing analogous structures, leaves that repel water.

In convergent evolution ecological or physical coincidences, drive toward a similar solution, including analogous structures.

There is an analogous structure in the octopus brain.

In contrast, there is convergent evolution with other groups not related due to ecological or physical drivers toward a similar solution, including analogous structures.

In the female, the urethral artery serves the analogous structures.

This analogous structure is referred to as an n-qubit register.