Multiple Choice
When calcium levels decline, the __________ secrete(s) __________, which __________ osteoclast activity.
A) parathyroids; calcitonin; suppresses
B) thyroid; calcitonin; suppresses
C) thyroid; calcitonin; enhances
D) thyroid; PTH; suppresses
E) parathyroids; PTH; enhances
Correct Answer:

Verified
Correct Answer:
Verified
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