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Taxonomy Tournament: Echinoderms
Atelostomata. This superorder of sea urchins are irregularily-shaped and lack a feeding lantern (they have cilia rather than calcium carbonate teeth). Members include the heart urchins
Holothuroidea. This class is made up of sea cucumbers, sea floor creatures with leathery skin and an elongated body.
Which clade of animals is better?
Atelostomata
Holothuroidea
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Taxonomy Tournament: Echinoderms
Echinacea. This superorder of sea urchins in the largest. They have a rigid test, hard spines, and gills.
Holothuroidea. This class is made up of sea cucumbers, sea floor creatures with leathery skin and an elongated body.
Which clade of animals is better?
Echinacea
Holothuroidea
Show results
