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  1. Sea urchin - Wikipedia

  2. Sea urchin | Description, Anatomy, & Facts | Britannica

    2024年10月5日 · sea urchin, any of about 950 living species of spiny marine invertebrate animals (class Echinoidea, phylum Echinodermata) with a globular body and a radial arrangement of organs, shown by five bands of pores …

  3. Virtual Urchin - Urchin Anatomy - UW Departments …

    Explore the Internal and External Anatomy of the Sea Urchin. Click on the urchin to see inside. Click again for outside.

  4. Sea Urchin Dissection || Aristotle's Lantern [EDU] - YouTube

  5. Sea Urchin Anatomy: [Parts & Fossils] - Sea Urchins Mag

    2023年5月11日 · Sea urchins have a water vascular system that aids in locomotion, feeding, and respiration. They are typically herbivorous or omnivorous, feeding on algae, kelp, and other plant material. Sea urchins …

  6. The Echinoid Directory - Natural History Museum

    Learn about the digestive, reproductive and water vascular systems of regular and irregular sea urchins. See diagrams and illustrations of the inside of the test and the organs of different echinoid species.

  7. Anatomy - See Urchins

  8. Sea Urchins - Woods Hole Oceanographic Institution

  9. Exploring The Biology And Ecology Of The Mighty Sea …

    2023年2月24日 · Sea Urchin Systems. The sea urchin is a fascinating creature with complex internal systems. Understanding the inner workings of the sea urchin system can provide insights into the biology and evolution of this …