- 産業: 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
Minute, hard, needle-like or sharp-pointed processes or projections.
Industry:Natural environment
Short "boots" usually made of neoprene, worn inside open-heeled fins. They protect a scuba diver's feet from rubbing against the fins while swimming, as well as protecting the entire foot while walking to and from a dive site. Booties also provide warmth.
Industry:Natural environment
The difference between the source level of a sound signal from a source and the source level of the background noise.
Industry:Natural environment
The pairing of complementary DNA or RNA sequences, via hydrogen bonding, to form a double-stranded polynucleotide. It is most often used to describe the binding of a short primer or probe.
Industry:Natural environment
The sum of all the physical and chemical processes by which living organised materials are produced and maintained (anabolism), and also the destructive transformation processes by which energy is made available for the uses of the organism (catabolism).
Industry:Natural environment
The world's largest scuba diving certification agency.
Industry:Natural environment
A cartilagenous fish that has a compressed body and rodent-like teeth. Chimaeras are closely related to sharks and rays (class Chondrichthyes, subclass Holocephali), but have larger heads and eyes, the mouth is more towards the front of the head, the gills are protected by a gill cover, the skin is smooth, and most species have a whip-like tail; also called ghost sharks or ratfish.
Industry:Natural environment
A female sex cell or gamete with the haploid number of chromosomes. It may be fertilized by a sperm cell to produce a zygote with the diploid number of chromosomes for that particular species. The eggs of some species may develop into multicellular individuals without being fertilized by a sperm cell. This is the process of parthenogenesis.
Industry:Natural environment
A long, usually narrow accumulation of sand, that is separated from the mainland by open water (lagoons, bays, and estuaries) or by salt marshes.
Industry:Natural environment
A portion of an ocean or sea that extends into the land; a partially land-locked sea, e.g., the Gulf of Oman.
Industry:Natural environment
