If the same base pairs are used to code for all organisms, why is there so much variation among organisms?

the order of the codons differs between organisms.
the order of the codons is the same between organisms.
the codons in each organism are the same.
the codons in each organism differ.

The right answer is A. The order of the codons differs between organisms.

When expressing the proteins from the genome of a given species, segments of the genomic DNA are transcribed into messenger RNA. This messenger RNA (or mRNA) contains non-coding regions, which are not translated into proteins, and one or more coding regions, which are translated by the ribosomes to produce one or more proteins. The mRNA is composed of the sequence of four types of nucleic bases, A, C, G and U, which constitute the "letters" with which the genetic code is written. The latter consists of "words" of three letters called codons. In the coding regions of the messenger RNA, each codon is translated into one of the 22 proteinogenic amino acids in the protein to be synthesized.

Since the number of three-letter words in a four-letter alphabet is 4^3, the genetic code contains 64 different codons, directly coding 20 so-called standard amino acids, and the end-of-translation signal, which is coded by three codons. -stop or termination codons.

From these codons there will be synthesized proteins specific or not of the given species.

the answer is c.) there is a warm front in region a and a stationary front in region b.