Which of the following is NOT an example of negative feedback? Select one: a. increasing pressure in the aorta triggers

[answerhappygod]

Which of the following is NOT an example of negative
feedback?
Select one:
a.
increasing pressure in the aorta triggers mechanisms to lower
blood pressure
b.
rising blood calcium levels trigger hormone release to lower
blood calcium levels
c.
rise in estrogen during monthly cycle increases the number of
progesterone receptors
d.
increased blood sugar stimulates release of insulin to increase
sugar storage in liver, thereby lowering blood sugar level