{"thcode":2,"term":{"code":305,"name":"echinoderms","parent":606,"scope":"Marine invertebrates of the phylum Echinodermata with a radial body and a calcareous exoskeleton. Includes starfishes, brittle stars, sea lilies, sea urchins, and sea cucumbers."},"uf":[],"bt":[{"code":606,"name":"invertebrates","parent":45,"scope":"Animals having no backbone or spinal column, such as insects, mollusks, crustaceans, worms, and similar organisms."},{"code":45,"name":"animals","parent":843,"scope":"Multi-celled organisms of the kingdom Animalia with eukaryotic cells (cells with distinct nuclei containing genetic material and bounded by thin membranes) that are heterotrophic (obtaining energy from organic substances produced by other organisms)."},{"code":843,"name":"organisms","parent":1174,"scope":"Living individuals that grow, reproduce, and die."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[{"code":605,"name":"invertebrate zoology","parent":1339,"scope":"Branch of biology dealing with animals having no backbones or spinal columns."}]}