- 업종: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A pocket-size book or a CD containing taxonomic keys for identification, illustrations and/or photographs of organisms, distribution maps, and some natural history notes.
Industry:Natural environment
A sound transmittor attached to an aquatic animal to track its movements.
Industry:Natural environment
A type of polymorphism in which the frequencies of the coexisting forms do not change noticeably over many generations.
Industry:Natural environment
An extracellular material that forms the outer surface of plant, fungus, and certain bacterial cells. It is external to the cell membrane and serves in a structural and supporting role. The cell wall is composed primarily of cellulose and lignin in plants, chitin in Fungi, and peptidoglycans in bacteria.
Industry:Natural environment
Any unsegmented roundworm of the phylum Nemata, having a tough outer cuticle. The phylum includes free-living forms and disease-causing parasites.
Industry:Natural environment
In taxonomy, a formerly invalid or unavailable name that has been made valid or available by the International Code of Zoological Nomenclature, e.g. By annulment or suppression of senior homonyms or synonyms.
Industry:Natural environment
One of many radiating calcareous partitions in the skeletal cup (corallite) of stony corals.
Industry:Natural environment
Scuba diving that requires in-water stops during ascent to the surface to allow off-gassing of nitrogen.
Industry:Natural environment
The cycling of carbon in the form of carbon dioxide, carbonates, organic compounds, etc., between various reservoirs, e.g., the atmosphere, the oceans, land and marine biota and, on geological time scales, sediments and rocks.
Industry:Natural environment
