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Echinoderms

Echinoderms. Echinoderm Characteristics. Endoskeleton – inside body 5-part radial symmetry in most Deuterostome Being deuterostomes and having endoskeltons make them much more like us than any other invertebrates. Water Vascular System. Unique to echinoderms

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Echinoderms

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  1. Echinoderms

  2. Echinoderm Characteristics • Endoskeleton – inside body • 5-part radial symmetry in most • Deuterostome • Being deuterostomes and having endoskeltons make them much more like us than any other invertebrates

  3. Water Vascular System • Unique to echinoderms • Water is taken in through tube feet in rays (arms), pumped to center, and then back out. • This system carries out respiration, circulation, and movement.

  4. Water Vascular System

  5. Groups of Echinoderms • Sea urchins & sand dollars • Brittle stars • Sea cucumbers • Sea Stars (star fish, but they’re not fish) • Sea lilies and feather stars

  6. Sea Urchin and Sand Dollar

  7. Brittle Stars

  8. Sea Cucumbers

  9. Sea Stars

  10. Sea Lilies & Feather Stars

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