- Industry: Government
- Number of terms: 30456
- Number of blossaries: 0
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A sea floor fissure from which a spring of geothermally heated mineral and gas rich seawater issues. Hydrothermal vents are found on some oceanic ridges in zones of active seafloor spreading (plate tectonics) .
Industry:Natural environment
A taxon including several subordinate taxa, e.g. A polytypic genus is one containing several species.
Industry:Natural environment
An undifferentiated cell of a cleaving embryo, and of the morula and blastula stages of embryonic development.
Industry:Natural environment
In fishes, a finger-like pouch connected with the pyloric stomach of the digestive canal. Pyloric caecae may have a digestive and/or absorptive function. They range in number from two or three in some species to thousands in others.
Industry:Natural environment
Living or moving in a group with others of its kind, as in a flock of birds or school of fish.
Industry:Natural environment
The analysis of a phenomenon to determine its qualitative characteristics versus its quantitative characteristics, i.e., characteristics for which precise numerical characterization is not appropriate.
Industry:Natural environment
The intake of water or food substances by "swallowing" them, taking them into the body cavity or into a cell vacuole.
Industry:Natural environment
A concept of species, in which a species is a set of organisms adapted to a particular ecological niche.
Industry:Natural environment
