Multiple Choice
A rich, regular cluster of galaxies differs from a rich, irregular cluster in that
A) its galaxies are distributed in a regular, highly flattened system (like a disk) .
B) it contains fewer galaxies than does an irregular cluster.
C) it lacks the giant elliptical galaxies often found in irregular clusters.
D) it has fewer spirals and more ellipticals and S0 galaxies than an irregular cluster.
Correct Answer:

Verified
Correct Answer:
Verified
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