Increased vasoconstriction has an important role in which of the following situations? a. causing the decrease in blood pressure associated with faintingb. increasing blood flow to muscle during exercisec. increasing blood flow to skin during blushingd. maintaining blood pressure during a hemorrhage

D. Maintaining blood pressure during a hemorrhage

Explanation:

Vasoconstriction is the narrowing of the blood vessels that results in the reduction of blood flow, the resistance of blood increases and the blood pressure goes up. This process is helpful to stabilize blood pressure and to prevent the loss of blood (hemorrhage).

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the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: