- المجال: Government
- Number of terms: 30456
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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
An expression of the number of times that a base is used as a factor.
Industry:Natural environment
Fish eggs or egg-filled ovary; the egg mass or spawn of certain crustaceans, such as lobsters.
Industry:Natural environment
One of many blister-like openings in the lower part of the body column of some anemones, through which the animal expels long, thread-like acontia.
Industry:Natural environment
The creation of proteins from their constituent amino acids, in accordance with the genetic information carried in the DNA of the chromosomes.
Industry:Natural environment
The number of pairs of electrons an atom can share with other atoms.
Industry:Natural environment
A basket-like structure formed midventrally by overlapping branchiostegals in some families of eels.
Industry:Natural environment
A different species that occupies a similar ecological niche in a similar ecosystem in a different part of the world.
Industry:Natural environment
A layered, fossilized deposit, mainly of limestone, formed by photosynthesizing colonial cyanobacteria and other microbes. They are the oldest known fossils, dating back more than 3 billion years. Stromatolites are prokaryotes that thrived in warm aquatic environments and built reefs much the same way as coral does today. They were common in Precambrian time (i.e., more than 540 million years ago). Although stromatolites continue to form in certain areas of the world today, they grow in greatest abundance in Shark Bay in western Australia.
Industry:Natural environment
