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Body Cavities of Animals
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Transcript
Body Cavities of Animals
Acoelomates - no true coelom;
flatworms are an example, only have gastrovascular cavity - not a complete gut;
notice the mesoderm derived tissue (pink)
Remember, animals digest internally.
We are essentially a hollow tube surrounded by
tissues and organs.
Pseudocoelomates - pseudo coelom
Notice how the digestive cavity is not lined by mesodermal tissues
This means that the body cavity is not completely lined with mesoderm
notice with coelomates, the entire body cavity is lined with mesoderm derived tissues, organs will be in coelom space
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