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Month: August 2022

What are 5 echinoderms?

What are 5 echinoderms? In traditional taxonomy, there are five classes of living echinoderms: Crinoidea (sea lilies), Asteroidea (starfish), Ophiuroidea (brittle stars or snake stars), Echinoidea (sea urchins and sand dollars), and Holothuroidea (sea cucumbers). How many species of echinoderms Read more…