Top 2 Phases of Obelia | Marine Animals
The following points highlight the top two phases of obelia. The phases are: 1. Hydroid or Polyp Phase 2. Medusoid Phase. Obelia: Phase # 1. Hydroid or Polyp Phase: Hydroid stage of Obelia is in a colonial form. It is a branched filament like structure and remains attached with the substratum. This colony is polymorphic, i.e., number of individuals or [...]