The anus is absent in .................... | vedclass

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Question

(A) The $Fasciola$ (liver fluke) belongs to the phylum $Platyhelminthes$. Organisms in this phylum exhibit an incomplete digestive system,which means

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Fasciola

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(A) The $Fasciola$ (liver fluke) belongs to the phylum $Platyhelminthes$. Organisms in this phylum exhibit an incomplete digestive system,which means they have a single opening that serves as both the mouth and the anus. Therefore,a separate anus is absent in $Fasciola$. In contrast,$Pheretima$ (earthworm),$Periplaneta$ (cockroach),and $Unio$ (mollusk) possess a complete digestive system with both a mouth and an anus.

The anus is absent in $...................$.

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