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{{stub}}
Hydra
It is solitary and diploblastic coelenterate.
Proximal end close and flat called basal disc.
Hypostome bear 6-10 tentacles.
Tentacles are hollow.
Hydra exit in polymer form.
Mouth also acts as anus in hydra.
It inject poisonous fluid Hypnotoxin in the body of prey that either kill or paralyse the prey.
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