Write the name of phylum to which Hydra and Sea Anemone belong.

Coelenterata (Cnidaria)

1. They are aquatic, mostly marine, sessile, or free-swimming radial symmetrical animals.
2. The name Cnidaria is derived from the cnidoblasts (which contain a stinging capsule).
3. Example: Hydra, Physalia (Portuguese man of war)