4-Zoology-Kinds-Annelid-Excretion

nephridium

In septa, blood vessels surround ciliated-funnel pairs {nephridium}. Tubes lead from nephridia to surface to carry away wastes.

bladder

Tubes from nephridia have enlargements {bladder, annelid}| in centers.

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4-Zoology-Kinds-Annelid

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Date Modified: 2022.0225