Flatworms: Difference between revisions

Revision as of 18:04, 22 April 2023

**Taxonomic Classification**

Kingdom:	Animalia
Subkingdom:	Eumetazoa
Clade:	ParaHoxozoa
Clade:	Bilateria
Clade:	Nephrozoa
Unranked:	Protostomia
Unranked:	Spiralia
Clade:	Rouphozoa
Phylum:	Platyhelminthes
Source: Integrated Taxonomic Information System

Attribute	Cnidarians and Ctenophores	Platyhelminthes (flatworms)	More "advanced" bilaterians }}
Bilateral symmetry	No	Yes
Number of main cell layers	Two, with jelly-like layer between them (mesoglea)	Three
Distinct brain	No	Yes
Specialized digestive system	No	Yes
Specialized excretory system	No	Yes
Body cavity containing internal organs	No		Yes
Specialized circulatory and respiratory organs	No		Yes

@@ Line 34: / Line 34: @@
 |}
 {| class="wikitable" style="margin-left:4px"
-! Attribute !! [[Cnidarian]]s and [[Ctenophore]]s<ref name="Hinde2001CnidariaAndCtenophoraInAnderson" /> !! [[Platyhelminthes]] (flatworms)<ref name="WalkerAnderson2001PlatyhelminthesInAnderson" /><ref name="RuppertBarnes2004Platyhelminthes"/> || More "advanced" [[bilateria]]ns<ref name="RuppertBarnes2004Bilateria">{{cite book | author1=Ruppert, E.E. | author2=Fox, R.S. | author3=Barnes, R.D. | name-list-style=amp | title=Invertebrate Zoology | publisher=Brooks / Cole | edition=7 | isbn=978-0-03-025982-1 | year=2004 | pages=[https://archive.org/details/isbn_9780030259821/page/196 196–224] | url-access=registration | url=https://archive.org/details/isbn_9780030259821/page/196 }}</ref>
+! Attribute !! [[Cnidarian]]s and [[Ctenophore]]s !! [[Platyhelminthes]] (flatworms) || More "advanced" [[bilateria]]ns  }}
 |- align="center"
 ! Bilateral symmetry