The closure of which of the following valves is associated with the “dupp” sound of a heartbeat? a.) the pulmonary slv b.) the bicuspid valve c.) the tricuspid valve d.) the mitral valve

B. The Bicuspid Valve.

Heart sounds are monitored by using a stethoscope. The characteristic lubb-dupp that the heart makes is due to the closing of the two sets of valves. The “lubb” is due to closing of the atrioventricular vales, and the “dupp” is due to the closing of the semilunar valves.

light rays enter the eye through the cornea, the clear front first understand how the eye enables us to see, and what role the cornea plays in eye at different angles, and do not focus on one point the retina, but on many we can tolerate very large scars on our bodies with no concern except for our vanity.

d ) power this is the right answer