EntityQ16505822· pop 5· linked from 276 articlesholdfastSign in to saveroot-like structure that anchors aquatic sessile organisms, such as seaweedConnectionsUtahEntityInternational Standard Book NumberEntityenzymeEntityrootEntityalgaeEntityPoriferaEntitylichenEntityCnidariaEntityOrdovicianEntityEmbryophytesEntityCrinoideaEntityseaweedEntityNatural History MuseumEntitykelpEntitybenthic zoneEntityPennatulaceaEntityaquatic animalEntitysubstrateEntitysessilityEntityEocrinoideaEntityCategoriesPlant morphology