General Characteristics Range from one 1mm to 3 meters. Fluid outer body External cuticle that is never shed or mold Has a nervous system/brain 100 body segments

 Uses its tail to determine the temperature so it can tell is it wants to go under water or underground..

 Some annelida worms are used for medical reasons.  Earth worms help with soil a lot and farmers use them to help their crops grow  They carry both female and male sex cell ?????

 Cuticle = dead skin  Detritivore eats dead.  Decompose to rot

 Family Hirudinariinae  Genus Hirdudo  Genus Poecilobdella  Sand on the beach

 Kingdom animalia  Phylum Annelida  Class Clitellata  Food soil  Habitat underground  9 to 30 cm

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