Differentiation in segmental fashion occurs i | vedclass

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(A) The phenomenon of metameric segmentation,where the body is divided into repeating segments,is a characteristic feature of the phylum $Annelida$. L

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Leech

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(A) The phenomenon of metameric segmentation,where the body is divided into repeating segments,is a characteristic feature of the phylum $Annelida$. Leech $(Hirudinaria)$ belongs to the phylum $Annelida$,and therefore,it exhibits differentiation in a segmental fashion. Starfish belongs to $Echinodermata$,Snails belong to $Mollusca$,and $Ascaris$ belongs to $Aschelminthes$ (or $Nematoda$),none of which exhibit true metameric segmentation.

Differentiation in segmental fashion occurs in

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