- المجال: 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
The evolution of a single evolutionary stock into a number of different species.
Industry:Natural environment
The process by which corals and calcareous algae extract calcium from seawater and produce it as calcium carbonate.
Industry:Natural environment
The strand of chromosomal DNA that is transcribed; a DNA sequence that is complementary to all or part of an mrna molecule.
Industry:Natural environment
A chromatophore which contains reddish pigments found in carotenoids and pteridines.
Industry:Natural environment
A mechanism that prevents reproduction from occurring between two populations. Pre-zygotic reproductive isolating mechanisms (which take effect before fertilization) include environmental, temporal, behavioral, mechanical, and physiological barriers that prevent individuals of different populations from producing viable progeny. Post-zygotic reproductive isolating mechanisms (which take effect after fertilization) include gamete incompatibility, hybrid inviability, and hybrid sterility.
Industry:Natural environment
A random variable whose range of possible values is finite or countably infinite .
Industry:Natural environment
A structure that resembles a hydrozoan velum In scyphozoan medusae, but has a different embryonic origin .
Industry:Natural environment
