- 行业: Government
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
The Florida Keys National Marine Sanctuary was designated as a national marine sanctuary in November of 1990. The Florida reef tract is the most extensive living coral reef system in North American waters and the third largest barrier reef system in the world. The sanctuary extends 220 miles in a northeast to southwest arc between the southern tip of Key Biscayne, south of Miami, to beyond, but not including the Dry Tortugas Islands.
Industry:Natural environment
A complete infectious viral particle, existing outside of a host cell, with nucleic acid and capsid, and in some types, an outer lipid envelope .
Industry:Natural environment
A graphical, tabular, or mathematical summary of a set of data showing the frequency (or number) of items in each of several non-overlapping classes .
Industry:Natural environment
A molecule, such as a hormone or growth factor, that binds to a specific site on a receptor protein.
Industry:Natural environment
A sac that stores spermatozoa (sperm cells) prior to fertilization of an egg.
Industry:Natural environment
A synthetic rubber with good resistance to oil, chemical, and fire. Wet suits and other "rubber" diving accessories used by scuba divers are made of neoprene .
Industry:Natural environment
An amino acid which can be synthesized by the organism's body, and not required in the nourishment source. Humans can make 13 nonessential amino acids.
Industry:Natural environment
An organism whose phenotype (but not genotype) has been changed by the environment to resemble the phenotype usually associated with a mutant organism; a phenotypic variation in an organism that has an environmental rather than a genetic cause, and is not inherited .
Industry:Natural environment
In ecology, the total energy content of all organisms at each trophic level in a food chain; the energy content declines at successively higher trophic levels.
Industry:Natural environment
