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 stimulates the movement of sugar out of the blood.
B) a decrease in blood sugar increases the secretion of a hormone that increases the conversion of glycogen to glucose.
C) uterine contractions needed for the birthing process are expedited by the pressure of a moving baby in its mother's uterus.
D) an increase in calcium concentration increases the secretion of a hormone that promotes the storage of calcium in bone.
E) a decrease in blood calcium increases the amount of the hormone that causes the release of calcium from bone.