- 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
The capacity of an organism or population to change its location or distribution with time; ability to migrate.
Industry:Natural environment
The main organ in crustaceans used for excretion and osmoregulation; the green gland.
Industry:Natural environment
The selective removal of animals from a population for conservation purposes.
Industry:Natural environment
A current that flows parallel to the shore just inside the surf zone. It is also called the littoral current.
Industry:Natural environment
A laboratory experiment or study performed outside the body of a living organism in a test tube, petri dish, or other vessel .
Industry:Natural environment
A nuclease that cleaves nucleic acids at specific internal sites.
Industry:Natural environment
A situation in which the increased availability of nutrients such as nitrate and phosphate stimulates the growth of plants such that the oxygen content is depleted and carbon sequestered.
Industry:Natural environment
An assay for the activity or potency of a substance that involves testing its activity on living materials.
Industry:Natural environment
Any of a group of triploblastic invertebrates that has a fluid-filled body cavity, the pseudocoelom, lying between the endoderm and the mesoderm The pseudocoelom is contrasted with the coelom of mollusks, annelid worms, and the more complex animals, including vertebrates, by lacking an endothelial lining. Pseudocoelomates lack a circulatory system, using the pseudocoelom to transport nutrients. The hydrostatic pressure of the pseudocoelom gives the body a supportive framework that acts as a skeleton. Nematodes (roundworms), rotifers, acanthocephalans (spiny-headed worms), kinorhynchs, and nematomorphs (horsehair worms) are pseudocoelomate groups.
Industry:Natural environment
