单词 | Acoela |
释义 | Acoelaplural noun Acoe·la (ˈ)ā-ˈsē-lə : an order or other division of Turbellaria that is sometimes regarded as a suborder of Rhabdocoela and comprises marine flatworms that lack a digestive cavity with definite walls and that receive food into a porous mass of endodermal tissue |
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