Echinoderms are a phylum with usually 5 fold symmetry, spines and calcium carbonate plates.
Yes it does
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legs.
what aver
like a starfishes....
it is usually with 5 arms
water vascular system
openings
their body plan
Adult echinoderms only have one body opening. Their larvae have two.
Gills and a well developed nervous system
Gills and a well developed nervous system