Which phrase describes an irregular galaxy? has a round shape does not have a specific shape has arms that extend from the center is larger than other types of galaxies

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.