With age, the tissues making up a heart valve can lose flexibility and become stiff and narrowed while retaining their one-way closure properties. suppose a man's aortic valve is affected by this condition but his ventricles do not change their force of contraction. which of the following will likely happen?

a. blood will flow more rapidly than normal through the atria and right ventricle.

b. pressure within the left ventricle will increase during the systole phase.

c. the body's total blood volume will drop.

d. volume of blood flowing out of the left ventricle during a contraction will increase.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.