Which statement(s) about galaxy groups is/are true?
choose one or more:
a. galaxy me...
Which statement(s) about galaxy groups is/are true?
choose one or more:
a. galaxy mergers in groups are not known to have ever happened
b. galaxies in a group are all moving away from each other.
c. interactions between massive and less-massive galaxies affect only the smaller galaxies.
d. tidal streams can result from galaxy interactions.
e. the largest galaxies tend to have satellite galaxies.
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