- 行业: 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 coral whose skeletal form approximates that of a broad, flattened plate.
Industry:Natural environment
A hollow steel or aluminum cylinder, used to contain compressed air or other breathing gas mixtures used by scuba divers for an air supply; also called a cylinder or bottle.
Industry:Natural environment
A non-food species that is produced and maintained solely for exhibit purposes in home or public aquaria, or in ornamental garden ponds.
Industry:Natural environment
A simple excretory organ of many invertebrates, consisting of a tube through which waste products pass to the exterior.
Industry:Natural environment
A thermometric scale on which the freezing point of water is at 32 degrees F (Fahrenheit) above the 0 degree (F) mark on the scale, and the boiling point of water is at 212 degrees F.
Industry:Natural environment
An area that, at least periodically, has waterlogged soils or is covered with a relatively shallow layer of water. Bogs, freshwater and saltwater marshes, and freshwater and saltwater swamps are examples of wetlands.
Industry:Natural environment
Any light-sensing structure in some primitive organisms that consists of a pigmented area and light sensitive cells; also called an ocellus.
Industry:Natural environment
In geology, a hotspot is a location on the Earth's surface that has had volcanism for a long period of time. Geologists have identified some 40-50 such hotspots.
Industry:Natural environment
