Why animals of phylum platyhelminthes are called flat worms?
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Platyhelminthes are a group of invertebrates that are also called flatworms because their bodies are dorsoventrally flattened. Therefore, they appear leaf-like or ribbon-like creatures.
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Because they have a flag body.
The first triploblastic is Platyhelminthes.
Platyhelminthes :
The body is bilateral symmetrical.
The body is flattened and Ribbon shaped.
It is a leaf like in appearance.
Body cavity is absent.
Digestive system is absent.
Circulatory and respiratory systems are absent.
The first triploblastic is Platyhelminthes.
Platyhelminthes :
The body is bilateral symmetrical.
The body is flattened and Ribbon shaped.
It is a leaf like in appearance.
Body cavity is absent.
Digestive system is absent.
Circulatory and respiratory systems are absent.
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