Flatworms: Difference between revisions
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|colspan="2" |Source: Integrated Taxonomic Information System | |colspan="2" |Source: Integrated Taxonomic Information System | ||
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{| class="wikitable" style="margin-left:4px" | {| class="wikitable" style="margin-left:4px" | ||
! Attribute !! [[Cnidarian]]s and [[Ctenophore]]s<ref name="Hinde2001CnidariaAndCtenophoraInAnderson" /> !! [[Platyhelminthes]] (flatworms) | ! 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> | ||
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! Bilateral symmetry | ! Bilateral symmetry | ||
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! Specialized [[circulatory system|circulatory]] and [[respiratory system|respiratory]] [[organ (anatomy)|organ]]s | ! Specialized [[circulatory system|circulatory]] and [[respiratory system|respiratory]] [[organ (anatomy)|organ]]s | ||
| colspan="2" | No || Yes | | colspan="2" | No || Yes | ||
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Revision as of 17:56, 22 April 2023
| |
| 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[1] | Platyhelminthes (flatworms)[2][3] | More "advanced" bilaterians[4] |
|---|---|---|---|
| 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 | |
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedHinde2001CnidariaAndCtenophoraInAnderson - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedWalkerAnderson2001PlatyhelminthesInAnderson - ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedRuppertBarnes2004Platyhelminthes - ↑ Template:Cite book