Question

how are the mammalian ear bones related to the bony gill supports of fish? they function the same way in both animals. they are developmentally homologous. they come from different embryonic tissues. they are structurally identical across all species.

Explanation:

Mammalian ear bones and fish bony gill - supports are developmentally homologous. Homologous structures have a common evolutionary origin. During evolution, some of the fish's gill - support bones were modified to form the ear bones in mammals. They do not function the same way, come from different embryonic tissues is incorrect as they have an evolutionary connection, and they are not structurally identical across all species.

Answer:

They are developmentally homologous.