A Sieve-Like Plate on the Echinoderms Surface Through Which Water

question 49

Multiple Choice

A sieve-like plate on the echinoderms surface through which water enters the vascular system and flows to the ring canal through a tube is called

• A)madreporite.
• B)ampulla.
• C)nerve ring.
• D)skin gills.
• E)endoskeleton.

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