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Echinoderms are organisms that live on the ocean floor. Echinoderms include sea stars and brittle stars, sea urchins, and sea cucumbers. Sea cucumbers move by swimming or squirting water. Sea stars and brittle stars walk on the sea floor using tube feet. Describe the environment in which these organisms live. Predict the adaptations that would be beneficial to echinoderms for living in this environment.

Answer :

HABITAT- marine environments that range from the shallow estuarine to the deep sea
ADAPTATIONS
1. They are five- sided radial symmetry

2. They are able to regenerate body parts , and some species of sea stars are even able to grow a new body from a severed arm.

3. They have a water vascular system

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