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They are acoelomate (lack a body cavity). gas exchange is through the skin, not 100% but I believe they were the first phylum to evolve a excretory system (flame bulb I believe), dorsoventrally flattened so they have a high surface are to volume ratio. This allows them to have gas exchange through the skin ( no specialized respiratory/circulatory system). Genetic evidence suggest that actually evolved at two separate times which is interesting because they are still considered a phylum when genetic evidence suggest they may not even monophyletic, also alot of them are also parasitic. I am sure there is a ton more but that's all I can think/don't know of.
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∙ 12y ago
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What phylum do flukes belong to?
If you mean parasitic flatworms, they belong to the phylum Platyhelminthes.
Tapeworms and planarians are examples from which phylum?
platyhelminthes
What phylum do flatworms belong to?
Flatworms are in the Platyhelminthes Phylum
What is the phylum of marine flatworm?
Marine Flatworms are in the Platyhelminthes phylum
What phylum contains planarians?
Platyhelminthes
What phylum contains worms that excrete by of flame cells?
platyhelminthes
What is platyhelminthes's role in the ecosystem?
don't worry bout' it
Scientific name for flatworms?
The scientific name for flatworm is Platyhelminthes.
What phylum are flat worms in?
free-flatworms belong to: phylum - Platyhelminthes. class - Turbellaria.
Does the phylum platyhelminthes have a circulatory system?
No, Platyhelminthes lacks a circulatory system and a respiratory system.
Phylum name for planarian?
Their Superphylum is Platyzoa and their Phylum is Platyhelminthes.
Are Tapeworms and pseudo-tapeworms in the same Phylum?
Tapeworms are of the class Cestoda of the phylum Platyhelminthes.
