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 jellyfish. 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).