Among the following four organisms (1, 2, 3, and 4), determine which one is incorrectly identified with its corresponding taxonomic group and common name provided in the given options.
1 2

| Image | Name of an organism | Common name | Taxonomic Group |
| 2 | Adamsia | Star coral | Ctenophora |
| Image | Name of an organism | Common name | Taxonomic Group |
| 4 | Spongilla | Fresh water sponge | Porifera |
| Image | Name of an organism | Common name | Taxonomic Group |
| 3 | Aurelia | Jellyfisha | Coelentrata |
| Image | Name of an organism | Common name | Taxonomic Group |
| 1 | Euspongia | Bath sponge | Porifera |
The organism that is incorrectly identified is Adamsia. It is not classified under Ctenophora. The correct taxonomic group for Adamsia, which is the star coral, is Cnidaria. Hence, the correct answer is option 1.