{"thcode":2,"term":{"code":843,"name":"organisms","parent":1174,"scope":"Living individuals that grow, reproduce, and die."},"uf":[{"name":"biological organisms","usewith":false}],"bt":[{"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":[{"code":29,"name":"algae","parent":843,"scope":"Chlorophyll-bearing primarily aquatic nonvascular species that have no true roots, stems, or leaves; most algae are microscopic, but some species can be as large as vascular plants."},{"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":56,"name":"archaea","parent":843,"scope":"Microscopic organisms of the domain Archaea living on a diet of hydrogen and carbon dioxide, once thought to be bacteria, and often inhabiting extreme environments, such as thermal vents and hot springs, extremely alkaline and acidic waters, hypersaline water, and anoxic habitats."},{"code":76,"name":"bacteria","parent":843,"scope":"Single celled microorganisms, beneficial or pathogenic, without a nuclear membrane."},{"code":420,"name":"fungi","parent":843,"scope":"Immobile organisms of the kingdom Fungi that lack chlorophyll and that obtain nutrients from other dead or living organisms. Fungi reproduce by spores and include yeasts, molds, smuts, and mushrooms."},{"code":647,"name":"lichens","parent":843,"scope":"Plants that are composed of a fungus and an alga growing together symbiotically and often found growing on rocks or tree trunks."},{"code":909,"name":"plants (organisms)","parent":843,"scope":"Organisms which belong to the plant kingdom. Commonly multicellular, they produce food through photosynthesis."},{"code":940,"name":"protists","parent":843,"scope":"Unicellular eukaryotes (organisms possessing nucleated cells) with affinities to both plants and animals. Classed in the Protista or Potoctista kingdom, they include protozoans, foraminifera, radiolarians, fungi and some algae."},{"code":1280,"name":"viruses","parent":843,"scope":"Very small particles visible only with an electronic microscope. Considered to be complex molecules and not living organisms, these are often causes of disease in plants, animals, and bacteria."}],"rt":[{"code":650,"name":"life sciences","parent":1019,"scope":"Branches of science that study living and fossil organisms."},{"code":841,"name":"organism groupings (non-taxonomic)","parent":1174,"scope":"Used for categories of living organisms that are not taxonomic and that include species from more than one taxonomic group."}]}