Which of the following are associated with aging? a. Increasing blood pressure b. Weakening of venous valves c. Arteriosclerosis d. Collapse of the ductus arteriosus An increase in BP would be caused...

Which of the following are associated with aging?

a. Increasing blood pressure

b. Weakening of venous valves

c. Arteriosclerosis

d. Collapse of the ductus arteriosus

An increase in BP would be caused by all of the following except

a. increase in SV.

b. increase in heart rate.

c. hemorrhage.

d. vasoconstriction of the arterioles.