Answers

2016-03-07T09:25:04+05:30
Platyhelminthes are those who live inside the body 
Nematoda live outside the body 
Platyhelminthes are parasitic
Nematoda are mostly not parasitic
Platyhelminthes does not have organs
Nematoda does have organs

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2016-03-07T09:47:05+05:30
1)Platyhelminthes are bilateral symmetrical,free living,triploblastic(eg:tapeworm).
2)Nemathoda are also bilateral symmetrical but with true coelom,segmentation and extensive organ differentiation (eg:ascaris).
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