| 1 | Jellyfish are free-swimming members of the phylum Cnidaria. | |
| 2 | Grace says they are AEROCOELENTERATES, genus MEDUSA. | |
| 3 | Such regenerative powers are seen in a few simple animals, such as Hydra, some coelenterates, and flat worms. | |
| 4 | Photo Gallery: Underwater Landscapes Coelenterate coral and a pink sea fan form a vibrant stage for whitetail chromis near Namena Island, Fiji. | |
| 5 | In contrast to CNIDARIA they lack stinging cells, but they are voracious predators and possess sticky cells (colloblasts) for capturing prey. |
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