It would be primary since the writer himself is getting the information from a direct source.
Answer:
hydrogen
helium
plasma
auroras
magnetic
White dwarfs are lower on the scale of luminosity varying from .001 to 1, compared with the brighter luminosity of super giants that are measured at 10,000 and above. White dwarfs are in the blue to white stellar temperature, and super giants are measured as white on the stellar temperature.
Explanation:
Ethanol is a fuel produced by fermenting crops
Answer:
An amino acid can be encoded by more than one codon.
Explanation:
Codons are triplets of nucleotides in mRNA that are used for the protein synthesis (translation). A codon specifies a single amino acid, but there are exceptions. tRNA molecule contain anticodons, triplets of nucleotides that are complementary to codons. So, during the translation, tRNA carries the amino acid, that corresponds to the codon in mRNA.
Degenerate genetic code (more than one codon can code for the same amino acid) is important, because when point mutation occurs it is possible that the amino acid remains unchanged.