The disk component of a spiral galaxy includes which of the following parts?
A)bulge
B)halo
C)globular clusters
D)spiral arms
E)all of the above

Question

Quizplus · Accepted Answer

The disk component of a spiral galaxy includes the spiral arms, which are made up of gas, dust, and young stars. The bulge is a central region of the galaxy that can contain old stars and a supermassive black hole. The halo is a spherical region surrounding the galaxy, composed of old stars, globular clusters, and dark matter. While globular clusters are found in the halo, they are not part of the disk component. Therefore, the best choice is D, spiral arms.

The Disk Component of a Spiral Galaxy Includes Which of the Following