Regeneration of Hydra would be faster if it is cut off from
In Hydra, the rate of regeneration is more from tentacles, compared with other organs like Hypostome, Base, polyp, etc.
The two organisms which can regenerate fully from their cut body parts are : (a) Paramecium and Hydra (b) Hydra and Amoeba (c) Planaria and Leishmania (d) Hydra and Planaria