What type of mutation does not change the amino acids produced?

According to the loco mass the mass of reactants and products

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins