Hypertension damages the lining of the arterioles of the kidneys, which results in the release of molecules that further raise blood pressure. This is an example of a(n)
A) positive feedback loop.
B) uncontrolled mechanism.
C) controlling mechanism.
D) negative feedback loop.
E) electrochemical mechanism.
A
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a. nitrogen fixation b. denitrification c. nitrification d. ammonification e. decomposition
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