In the endocrine system, when the rise of the level of one hormone triggers the release of another hormone, this is called:
a. negative feedback c. nervous system con-trol
b. positive feedback d. adrenal system regu-lation
B
If the blood level for a specific hormone falls below normal, negative feedback causes the specific endocrine gland to produce more of the hormone, which when increased to the normal level causes a decrease in production. In positive feedback, the rise of the level of one hormone will trigger the release of another hormone. This occurs during the female menstrual cycle.
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