What feature suggests an elliptical galaxy's structure arose from random motion?

Answer

Its structure suggests a history dominated by random motion rather than ordered rotation

Elliptical galaxies appear smoother and range from spherical to elongated ovals. Their structure is contrasted with spirals by suggesting a formation history dominated by random motion rather than the ordered rotation necessary for a disk.

What feature suggests an elliptical galaxy's structure arose from random motion?
galaxiesastronomystructureformationshape