Which of the following is NOT one of the principal regulatory mechanisms for guarding against fluctuation in pH?

A) ?temperature variation
B) ?buffer systems
C) ?respiratory center
D) ?renal regulation


A

Nutritional Science

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Of the 10 leading causes of death in the United States, _____ are related to nutrition, and one to alcohol consumption

a. two b. three c. four d. five e. six

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