- المجال: 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 taxon based on the fossilized work of an animal, including fossilized trails, burrows, and tubes.
Industry:Natural environment
An undesirable substance not normally present, or an usually high concentration of a naturally occurring substance in the environment; a substance in water that might adversely affect the health and welfare of the biota.
Industry:Natural environment
In fishes having the swim bladder connected by a tube to the gut.
Industry:Natural environment
Pregnant; heavy with young; full of ripe eggs or distended by such fullness.
Industry:Natural environment
The analysis of a phenomenon that uses environmental variables represented by numbers or ranges, often accomplished by numerical modelling or statistical analysis.
Industry:Natural environment
The innermost layer of the Earth, consisting primarily of pure metals such as iron and nickel. The core is the most dense layer of the Earth, and is divided into the outer core, which is believed to be liquid, and the inner core, which is believed to be solid.
Industry:Natural environment
