what is phylum coelenterata

1.	what is phylum coelenterata
Answer» 1.Animals in this phylum known as coelentretes.2.They are showing tissue level of organisation.3.They are diploblastic,radially symmetrical and have a body cavity known as Gastro vascular cavity.4.Body showing two types of structures known as polyp and medusa.5.Polyp is cylindrical and non-motile form for example, hydra and corals.6.Medusa is umbrella shaped and free floting form for example, jelly fish.7.Both polyp and medusa is present in obelia.8.They are living as colonies (eg:corals) or free living (eg:hydra).9.Tentacles contains cnidoplast, used to catch prey.10.Water enters through hypostome. 1.Coelenterata is a type of kingdom animalia .They are multicellular organism.2.Body contain two layer of tissue ectoderm and endoderm between jilly like substance.3.The mouth is sourrounded by tentacles contain nematocysts(stinging cells) called cnidoblasts.4.Reproduction may be sexuall or asexuall.5.Ex.hydra,obelia etc. Coelenterata:\xa01)These are animals living in water.\xa02)Some of these organisms live in colonies while other live solitary.\xa03)They lack **** but has mouth which is surrounded by short and thin tentacles(parts of body used for feeling,holding,Moving,getting food)\xa04)They show more body design differentiation.\xa05)The body is made up of two layers of cells-One makes up cells outside the body,other makes the inner lining of body.For Ex :Hydra,jellyfish,sea anemones,obelia,aurelia.

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