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1.The pregalactic blobs had masses similar to

1.The pregalactic blobs had masses similar to

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1.Galaxies evolve by

1.Galaxies evolve by

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1.Astronomers believe that a spiral galaxy may form

1.Astronomers believe that a spiral galaxy may form

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1.Active galaxies are having their central engines temporari…

1.Active galaxies are having their central engines temporarily fed by what occurrence?

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1.The further away a galaxy is

1.The further away a galaxy is

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1.What is true of spiral galaxies?

1.What is true of spiral galaxies?

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1.What is the Great Wall?

1.What is the Great Wall?

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Most galaxies in the Local Group are:

Most galaxies in the Local Group are:

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That quasars were at cosmological distances yet appeared lik…

That quasars were at cosmological distances yet appeared like ordinary faint stars meant:

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The Tully-Fisher relation exists between the galaxy’s lumino…

The Tully-Fisher relation exists between the galaxy’s luminosity and its

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