| 1 | A | B | C |
| --- | --- | --- | --- |
| 2 | Atlas of Peculiar Galaxies - Material emanating from elliptical galaxies |  |  |
| 3 | Arp Number | Common Name | Notes |
| 4 | 137 | NGC 2914 | Spiral galaxy with faint spiral arms |
| 5 | 138 | NGC 4015 | Interacting pair of galaxies |
| 6 | 139 | Arp 139 | Interacting pair of galaxies |
| 7 | 140 | NGC 274, NGC 275 | Interacting pair of galaxies |
| 8 | 141 | UGC 3730 | Ring galaxy system |
| 9 | 142 | NGC 2936, NGC 2937, UGC 5130 | Galaxy triplet |
| 10 | 143 | NGC 2444, NGC 2445 | Ring galaxy system |
| 11 | 144 | NGC 7828, NGC 7829 | Ring galaxy system |
| 12 | 145 | UGC 1840 | Ring galaxy system |

Question: What are the structural differences between NGC 2914 and NGC 4015?
Answer: NGC 2914 (Arp 137) is a spiral galaxy with faint spiral arms and NGC 4015 (Arp 138) is an interacting pair of galaxies.