CBSE Class 11-science Biology Platyhelminthes, Aschelminthes, Annelida

• Explain about ascaris lumbriocides?
• Name the phyla which show body segmentation??    
• why is planaria a type of sporozoan? Which is its spore stage
• Why are the animals which belong to phylum Platyhelminthes called flatworms?  
• What are parapodia? State their function.  
• Write any two examples of phylum Platyhelminthes.
• Why is Ascaris also called roundworm?
• Name the flatworm which has high regeneration capacity.
• How is the phylum Annelida named?  
• Write characteristic features of phylum Platyhelminthes.

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