- 行业: Government
- Number of terms: 30456
- Number of blossaries: 0
- Company Profile:
NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
A mound-like layered structure built by and predominantly composed of organic remains such as shells and skeletons of sedentary organisms.
Industry:Natural environment
A scuba diving certification card from scuba certifying agencies, such as NAUI, BSAC, NOAA, PADI, etc.
Industry:Natural environment
A systematist who attempts to classify life forms according to their evolutionary relationships, not just overall similarity.
Industry:Natural environment
An animal that does not have a true coelom or body cavity, i.e., a body cavity between the outer wall and the gut and lined with mesoderm. Acoelomate phyla include the flatworms (Platyhelminthes), ribbonworms (Nemertea), and jaw worms (Gnathostomulida).
Industry:Natural environment
An ultra-wide angle lens giving 180o angle of view. The widest fisheye lenses produce a circular and very distorted image .
Industry:Natural environment
Cyclical changes in form such as seasonal changes in morphology, as seen in some planktoic crustaceans.
Industry:Natural environment
In fact; in reality; existing but not officially recognized or legally established.
Industry:Natural environment
The initial stage of a fringing reef. It is discontinuous and covers a small area.
Industry:Natural environment
