Question

What is hydra ? and where are find?.​

Answer 1

Explanation:

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.

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Answer 2

Answer:

Hydra are animals in the phylum cnidaria which includes jellyfish, sea anemones and corals. They are found in freshwater environments all over the world. Hydra tentacles contain special cells called cnidocytes, which house a stinging structure known as nematocysts.

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