Question

Is hydra animal or plant and write a note on hydra ?

Answer 1

Hydra (animal) Hydra are simple invertebrates, with two layers of body cells. ... As Cnidaria they have stinging cells on their tentacles. They are hydrozoa, and belong to the same order as other polyps.

Answer 2

its an animal, Hydra  is a genus of small, fresh-water organisms of the phylum Cnidaria and class Hydrozoa. They are native to the temperate and tropical regions.Biologists are especially interested in Hydra because of their regenerative ability — they do not appear to die of old age, or indeed to age at all.