The central dogma of molecular biology states that DNA is into mRNA, which is then translated into polypeptides. Eukaryotic ribosomes exist freely floating in the and membrane-bound.
In peptide synthesis, after an amino acid has been added to the polypeptide chain, the empty exits the ribosome.

answer: the answer is b

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.