List the differences between Flatworm worms and Roundworms.

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Characters	Flatworm	Round worms
Natrue	Mosly parasitic but some are free living	Mostly endoparasitic but some are freeliving. Eg: Ascaris
Body	Body is dorsoventrally flattened, triploblastic.	Body is bilaterally symmetrical, elongated.
Colem	Acoelomate worms	Pseudocoelomate worms.
Excretion	Done by flame cells.	Excretory system consists of Rennet glands.
Digestive system	Absent or incomplete.	Alimentary canal is complete with well developed mouth, muscular pharynx and anus.
Sexes	Sexes are not separate.	Sexual dimorphism is seen.

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