Final answer:
The hypothalamus in the brain serves as the control center in the negative feedback loop for body temperature regulation, triggering various responses to maintain homeostasis.
Explanation:
The control center in the negative feedback loop that regulates body temperature is the hypothalamus in the brain. When the body's temperature exceeds its normal range, the hypothalamus initiates responses such as vasodilation, vasoconstriction, sweating, or shivering to restore body temperature to its set point.
Learn more about Body temperature regulation here:
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