Two species of meadowlark have different mating calls that lead to reproductive isolation. what type of isolation does this example represent

Behavioral Isolation. Both species of the meadowlark, even know they are very similar species will not mate due to the difference in the mating call. This in turn is a behavior that the birds pick up in order to keep the species from inter mating and causing change.

This type of galaxy is an approximately ellipsoidal shape and a smooth, nearly featureless image. they are the largest single star systems, in the universe and are built by the collisions of many smaller galaxies.