1. Which of the following is an example of positive feedback to indirectly maintain homeostasis?
   

AThe chemical reactions involved in blood clotting

BYour blood vessels dilate and you begin to sweat in response to elevated body temperature

CYour blood vessels constrict and you begin to shiver in response to low body temperature

DYour coach compliments you on your performance in practice

1. When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. This is an example of:
   

APositive feedback

BNegative feedback

CHomeostatic feedback