Starfish have suction-like cups helps to open clams
What organ systems do echinodermes lacking
Yes it does
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what aver
legs.
like a starfishes....
Echinoderms are a phylum with usually 5 fold symmetry, spines and calcium carbonate plates.
it is usually with 5 arms
water vascular system
Body is not an organ for movement.... body is an assemblage of organ systems.
openings
their body plan