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NEET UG BIOLOGY MCQ: CHEMICAL COORDINATION AND INTEGRATION

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Significant role of calcium balance in the body is maintained by
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Correct option: B
PTH and TCT
Option B (PTH and TCT) is correct because PTH (parathyroid hormone) increases blood calcium levels, while TCT (thyrocalcitonin or calcitonin) decreases blood calcium levels, thus maintaining calcium balance.

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