Positive Feedback Has Occurred When

Multiple Choice

Positive feedback has occurred when

A) an increase in blood sugar increases the secretion of a hormone that stores sugar as glycogen.
B) a decrease in blood sugar increases the secretion of a hormone that converts glycogen to glucose.
C) a nursing infant's sucking increases the secretion of a milk-releasing hormone in the mother.
D) an increase in calcium concentration increases the secretion of a hormone that stores calcium in bone.
E) a decrease in blood calcium increases the amount of the hormone that releases calcium from bone.