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3. Platyhelminthes,nematodes and annelids - Coggle Diagram
3. Platyhelminthes,nematodes and annelids
General characteristics
Soft, worm-shaped body with no skeleton
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Platyhelminthes
Nutrition:
Most parasites (tapeworms) 
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Habitat:
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Some aquatic species are free-living (planaria)
Nematodes
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Nutrition:
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Some parasites
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Trichinella
Annelids
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Body
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Organs similar to complex animals organs, but much simpler
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No legs, move by setae (rigid, hair-like structures)
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