<Li> Coelomate animals or Coelomata ( also known as eucoelomates -- `` true coelom '' ) have a body cavity called a coelom with a complete lining called peritoneum derived from mesoderm ( one of the three primary tissue layers ) . The complete mesoderm lining allows organs to be attached to each other so that they can be suspended in a particular order while still being able to move freely within the cavity . Most bilateral animals , including all the vertebrates , are coelomates . </Li>
<Li> Coelomate animals or Coelomata ( also known as eucoelomates -- `` true coelom '' ) have a body cavity called a coelom with a complete lining called peritoneum derived from mesoderm ( one of the three primary tissue layers ) . The complete mesoderm lining allows organs to be attached to each other so that they can be suspended in a particular order while still being able to move freely within the cavity . Most bilateral animals , including all the vertebrates , are coelomates . </Li>
when is the coelom said to be a true coelom
when is the coelom said to be a true coelom
with a complete lining called peritoneum derived from mesoderm ( one of the three primary tissue layers )
with a complete lining called peritoneum derived from mesoderm ( one of the three primary tissue layers )