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NOAA Coral Reef Conservation Program, National Oceanic and Atmospheric Administration, U.S. Department of Commerce
The sum of the atomic weights of the atoms in a molecule.
Industry:Natural environment
Together with proteins, ribosomal RNA forms the ribosomes, which play a structural role and also a role in ribosomal binding of messenger RNA (mrna) and transfer RNA (trna). The function of ribosomal RNA is to provide a mechanism for decoding mrna into amino acids and to interact with the trnas during translation by providing peptidyl transferase activity.The trna then brings the necessary amino acids corresponding to the appropriate mrna codon.
Industry:Natural environment
A catastrophic, widespread perturbation where major groups of species become extinct in a relatively short time.
Industry:Natural environment
A longitudinal line of ctenes on the epidermis of ctenophores (comb jellies).
Industry:Natural environment
A species which does not naturally occur within an area and which has usually arrived as a result of deliberate or accidental human intervention. Alien species often have adverse effects on native species as a result of competition.
Industry:Natural environment
An infectious disease constantly present in an animal population but having low incidence.
Industry:Natural environment
