- المجال: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
The flow of an element through the living tissue and physical environment of an ecosystem, e.g., the carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus cycles.
Industry:Natural environment
The production of living material per unit area (or volume) per unit time by herbivores. It is usually expressed as grams carbon per meter square per year.
Industry:Natural environment
A coastal cave formed in limestone or volcanic rock that is flooded with seawater. These marine or brackish water bodies lack surface connections to the sea. They include the longest submerged caves on Earth.
Industry:Natural environment
A gene that controls the activity of other genes involved in the development of a body plan.
Industry:Natural environment
A method of visually displaying data, such as a visualization theater, computer display, and map and chart.
Industry:Natural environment
A relatively weak chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen), with one side being a covalent bond and the other being an ionic bond.
Industry:Natural environment
A sugar that does not hydrolyse to produce other sugars; the simplest group of carbohydrates.
Industry:Natural environment
An abnormal increase in the number of eosinophils in the blood which is characteristic of allergic states and various parasitic infections; also called "eosinophilia".
Industry:Natural environment
