Why do parasitic flatworm not need a digestive system

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asked Mar 2, 2017 74.4k views

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Xiaorong Liao · Answer 1 · 2017-03-06T11:59:59+0000

Parasitic Flatworms do not have a digestive system because they do not need to digest there food. They just suck in nutrients already digested by the host they are in.

Why do parasitic flatworm not need a digestive system

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