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| Sand dollar |
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| Brittle Star |
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| Sea Cucumber |
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| Sea Urchin |
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| Starfish |
- They have five-part bodies and spines.
- They have many tube feet with tiny suction cups.
- There feet help them move, feel, and capture food.
- They only live in water.
- The body wall of these animals contains a skeleton of plates.
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