How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point)

Question

Responses

They vary in the brightness of stars located on their arms.
They vary in the brightness of stars located on their arms.

Some have a band of stars and materials through their middle, but others do not.
Some have a band of stars and materials through their middle, but others do not.

Some are more elongated in shape than others.
Some are more elongated in shape than others.

They vary in how tightly their arms are wound.

Answer 1

The two correct answers regarding the appearance of spiral galaxies are:

1. They vary in the brightness of stars located on their arms.
2. They vary in how tightly their arms are wound.

These variations can lead to different visual characteristics in spiral galaxies, including differences in luminosity and the overall structure of the spiral arms.