Worms

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Worms   There are 3 phyla that are worm
like  
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• 1. Platyhelminthes Flatworms  
• - flat bodies  
• - Planaria, lives in water and is so simple that
  they can regenerate their body parts.
• - Flukes and tapeworms, are parasites one
  species can grow to 18 meters (54 feet) and lives
  in all mammals, even whales.  

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Turbellarians
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Marine Flatworm
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Fluke
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Tapeworm
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Tapeworm Head
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TapewormJaws
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Tapeworms
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• 2. Nematodes Roundworms
• - round like spaghetti, means "threadlike"
• - very common, second only to insects in number
  of species
• - may live anywhere, some parasitic
• - pinworms, hookworms Trichina in pork  

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Nematodes
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Anisakis
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Anisakis Jaws
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Anisakis
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Giant Nematode
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• Annelids Segmented worms  
• live in soil or water  
• means "ringed", like an earthworm, sand worms, or
  leeches  
• - more complex, have a coelom, closed circulatory
  system and a simple brain.  

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Annelidae
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Annelidae
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Annelidae
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Annelidae
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Polychaete
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Sandworm
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Sandworms
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Polychaete
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Leeches
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Leeches
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Leech
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Leech
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