Answer:
Basically, the Atrioventricular valves are Mitral and Tricuspid valves located between the atrium and ventricles. Their main functions is to “prevent the backflow of blood from the ventricles into the atrium during the ventricular contraction (systole).
Explanation:
About 10% because I know about 90-95% of DNA is junk DNA(doesnt perform serious function)
Mainly carbohydrates our body stored energy as glycogen.
