The activity that does not change your body's pH is Vasoconstriction and vasodilation. Thus, the correct option for this question is D.
What is the body's pH?
The body's pH may be defined as the amount or level of acids and bases in your blood at which your body functions optimally. The human body is made to naturally regulate a healthy balance of acidity and alkalinity. The lungs and kidneys are the vital organs that play a key role in this process.
Heavy breathing increases the level of alkalinity in your blood which affects your body. Kidneys are the essential organ in maintaining or regulating the body's pH. The migration of minerals or ions across the body also impacts the level of pH throughout the body.
Therefore, the activity that does not change your body's pH is Vasoconstriction and vasodilation. Thus, the correct option for this question is D.
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