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 likeAureliaor jelly fish. Those cnidarians which exist in both forms exhibit alternation of generation (metagenesis), i.e., polyps produce medusae asexually and medusae form the polyps sexually (e.g.,Obelia).