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Segmentation Annelida Metamerism I)internal Septa Ii)external Annulus

Annelida's segmentation is termed metamerism, marked by internal septa and external annuli.

Segmentation in Annelida is called metamerism, indicated by both internal septa and external annuli.

Front segmentation in Annelida
Back metamerism
I)internal septa
II)External annulus

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