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Sea Star Body Functions
Echinoderm (Water Vascular System)
center, top, circle, where arms radiate,
center of central disk, poops and drinks from there
Center of sieve plate - eliminates
bottom of sea star - where food enters
on bottom, middle of arms - suction to grab food
internal, below central disks - digestive organ
brown feathery structure, comes out to arms, waste storage before expulsion
in arms, produces enzymes for food breakdown by stomach