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. is one of many billions of galaxies in the universe. b. is unique in the universe in showing definite spiral structure. c. contains the whole universe; everything observable is within its volume. d. is one of only a few spiral galaxies; most other galaxies in the universe are amorphous collections of stars shaped like ellipsoids.

Sagot :

There are plenty billions of galaxies in the universe, and each galaxy has many thousands of stars. The best choice is A.

How do you define a galaxy?

Countless stars, solar, gas, and dust make up a galaxy. Gravity holds a galaxy together. A supermassive black holes also resides in the center of our galaxy, namely Milky Way. You see additional stars in the Cosmos as you look up there at night sky for the stars.

Is there a genuine galaxy?

Galaxies are enormous islands in space made up of stars, plasma, dust, and gravitational waves that are bound together by gravity. Whether galaxies are found alone, in small groupings, or as part of enormous clusters, Hubble's acute vision has uncovered precise details about their shapes, structures, and histories.

To know more about galaxy visit:

https://brainly.com/question/17372146

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