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5 Written questions

5 Multiple choice questions

  1. spiny-skinned
  2. sexualy
  3. five part radial ___________
  4. sea urchin, sea cucumber, sea star, sand dollar
  5. sucker-like appendages used for moving and capturing prey

5 True/False questions

  1. What kind of feet do echinoderm havetubed feet they also have a water vascular system


  2. what protective structures do echinodermhave spines to ward off predators


  3. How do sea stars eatuses its tubed feet to pull open and insert its stomach to start digesting the prey. Digestive chemicals break down the bivalves tissues and the sea star sucks in the partially digested body of its prey


  4. do echinoderms have brainsno


  5. what does water vascular system meansystem of fluid-filled tubes used by echinoderms in locomotion and feeding and respiration


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