Botany - Animal Kingdom Question with Solution | TestHub

Cnidarians exhibit two basic body forms called polyp and Medusa. The former is a sessile and cylindrical form likeHydra,Adamsia, etc. whereas, the latter is umbrella-shaped and free-swimming like Aurelia or jellyfish, in the above diagram indicating the outline of their body form inAurelia (Medusa). Those cnidarians which exist in both forms exhibit alternation of generation i.e., polyps produce medusae asexually and medusae from the polyps sexually.