Which of these is a trna? the figure shows a process of translation. letters from a to d indicate definite structures. letter a indicates a sequence which is the base of the translation. letter b indicates units which transport all necessary amino acids. letter c indicates a structure in which the translation happens. letter d indicates the synthesized molecule. letter e indicates units which are transported to the structure c and forms the sequence of the molecule. which of these is a trna? the figure shows a process of translation. letters from a to d indicate definite structures. letter a indicates a sequence which is the base of the translation. letter b indicates units which transport all necessary amino acids. letter c indicates a structure in which the translation happens. letter d indicates the synthesized molecule. letter e indicates units which are transported to the structure c and forms the sequence of the molecule. a b c d e

Letter A indicates a sequence which is the base of the translation.  This is mRNA which contains the instructions for building a protin in a form of three nucleotides – codons.

Letter B indicates units which transport all necessary amino acids.  This is tRNA which “reads” the codons of a mRNA by binding its anticodons to mRNA’s codons (base pairing).

Letter C indicates a structure in which the translation happens.  This is a ribosome a protein-and-RNA structure which consist of small and large subunits.

Letter D indicates the synthesized molecule. This is a protein or more precisely polypeptide chain that will become protein after folding.

Letter E indicates units which are transported to the structure C and forms the sequence of the molecule. This is amino acid, basic unit for building a protein specified by the codon on mRNA.

i believe it would be the lungs.

a fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.[1] the age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years.[2] fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.[3] other commonly used derivatives include kerosene and propane. fossil fuels range from volatile materials with low carbon to hydrogen ratios like methane, to liquids like petroleum, to nonvolatile materials composed of almost pure carbon, like anthracite coal. methane can be found in hydrocarbon fields either alone, associated with oil, or in the form of methane clathrates.

the theory that fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the earth's crust over millions of years was first introduced by andreas libavius "in his 1597 alchemia [alchymia]" and later by mikhail lomonosov "as early as 1757 and certainly by 1763".[4] the first use of the term "fossil fuel" was by the german chemist caspar neumann, in english translation in 1759.[5]

in 2017 the world's primary energy sources consisted of petroleum (34%), coal (28%), natural gas (23%), amounting to an 85% share for fossil fuels in primary energy consumption in the world.[6] non-fossil sources in 2006 included nuclear (8.5%), hydroelectric (6.3%), and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%.[7] world energy consumption was growing at about 2.3% per year. in 2015 about 18% of worldwide consumption was from renewable sources.[8]