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:
Before mitosis can begin, the DNA within the parent cells must be duplicated so that each daughter cell receives the exact same genetic information. For this reason, cells produced during mitosis are identical. <span />
Answer:
The Sun revolves around Earth.
