Explain budding in Hydra.

Explanation

In Hydra, the exogenous type of budding takes place. Under favourable condition, i.e. when plenty of food is availale, the ectonderm cells divide and increase in number. They form a small elevation on the body surface. This leades to the formation of bud by pushing ectoderm and endoderm outside. The but then develops an internal lumen, which is continuous to the gastrovascular cavity of the parent. The but grows larger and develops a mouth and tentacles at the free end. When it is fully grown, a constriction and developed at the base of bud finally it detaches from the parent body. Each detached bud leads an independent life.