How does budding occurs is hydra?

Explanation

(i) Buds are formed on the outer surface of the parent body, it is known as exogenous budding e.g. Hydra.
(ii) In Hydra when food is plenty, the extoderm cells increase and form a small elevation on the body surface.
(iii) Ectoderm an endoderm are pushed out to form the bud. The bud contains an interior lumen in continuation with parent's gastrovascular cavity.
(iv) The but enlarges, develops a mouth and a circle of tentaches at its free end.
(v) When fully grown, the bud constricts at the base and finally separates from the parent body and leads an independent life.