This speimen is characteristic by:
have a flattened, bilaterally symmetrical body. They have three embryonic layers (triploblastic): the endoderm, the mesoderm, and the ectoderm. this specie is more none as flat worms have no other body cavity than the digestive cavity (acoelomates).
http://library.thinkquest.org/28751/review/animals/3.htmlhttp://www.ucmp.berkeley.edu/platyhelminthes/platyhelminthes.html
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