Editing Germ layer (section)

{{Short description|Primary layer of cells in embryonic development}}
{{More citations needed|date=September 2022}}
A '''germ layer''' is a primary layer  of [[cell (biology)|cell]]s that forms during  [[embryonic development]].<ref>{{cite book | title = Developmental Biology | chapter = The Epidermis and the Origin of Cutaneous Structures | first = Scott F | last = Gilbert | chapter-url = https://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=dbio&part=A2929 | publisher = Sinauer Associates | year = 2003}}</ref> The three germ layers in [[vertebrate]]s are particularly pronounced; however, all [[eumetazoa]]ns ([[animal]]s that are sister taxa to the [[sponge]]s) produce two or three primary germ layers. Some animals, like [[cnidaria]]ns, produce two germ layers (the [[ectoderm]] and [[endoderm]]) making them [[diploblastic]]. Other animals such as [[bilaterians]] produce a third layer (the [[mesoderm]]) between these two layers, making them [[triploblastic]]. Germ layers eventually give rise to all of an animal's [[Tissue (biology)|tissues]] and [[organ (anatomy)|organ]]s through the process of [[organogenesis]].