Describe the structure of the hydra.

Hydras are free-living coelenterates that live in the aquatic environment. Their body is in the shape of a cylinder. Also, hydras have several tentacles. Hydra has a mouth opening for capturing organic food particles. At the bottom of this organism is the sole. With the help of the sole, they are attached to the bottom of the reservoir. This means that they lead an attached way of life, although they are able to move. Hydras have good regeneration. If you divide the hydra into many parts, then from each part the missing organs will grow.