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  1. A radical evolutionary makeover gave echinoderms …

    2023年11月1日 · Echinoderms such as starfish are unusual for their five-fold body symmetry. Maps of gene-expression patterns show how this body plan was acquired, and that the genes specifying head structures do...

  2. Early echinoderms decouple form and function - Nature

  3. Echinoderm | Definition, Characteristics, Species,

    2024年9月30日 · Echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin. Living species include sea lilies, sea urchins, sea cucumbers, …

  4. Echinoderm - Wikipedia

  5. Echinoderm - Radial Symmetry, Tube Feet, Spines

    2024年9月30日 · Echinoderm - Radial Symmetry, Tube Feet, Spines: Echinoderms have a skeleton composed of calcium carbonate (calcite). Living echinoderms have a conspicuous five-rayed, radial symmetry that masks …

  6. Symbiotic Life of Echinoderm Larvae - Frontiers

    2020年1月21日 · In this review we synthesize the properties of these bacteria and how they relate to the biology and ecology of the echinoderm larval host. In the first section, we provide an overview of our understanding of echinoderm

  7. Echinoderms - Natural History Museum

    Echinoderms are sea stars, sea urchins, sea cucumbers, brittle stars, feather stars, and related animals. For many millions of years, they have been among the most conspicuous and abundant oceanic organisms. People around the world …

  8. Echinoderm roots - Nature

  9. Echinoderm Facts and Information - ThoughtCo

    2019年3月11日 · Echinoderms, or members of the phylum Echinodermata, are some of the most easily-recognized marine invertebrates. This phylum includes sea stars (starfish), sand dollars , and urchins, and they are identified by their …