How does regular exercise improve cardiovascular function during times of stress?

a. it increases oxygen supplies and lowers triglyceride levels.
b. it increases the level of hormones circulating in the body.
c. it reduces the amount of endorphins released in the body.
d. it reduces carbon dioxide supplies and raises triglyceride levels.

answer; /// i believe the answer is (sterilization ) plz check first.good luck

chuck around 35 cubic feet of dirt amount equivalent to the weight of the dirt of 700 pounds            

                            hope this

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.