Which three of the following are examples of feedback mechanisms which help maintain homeostasis? A incresed heart rate in response to exercise
B antibodies binding to a virus
Cprotein synthesis
Dinsulin secretion in response to high blood sugar
E proton pumping to maintain a proper pH level
F flagellar rotation for cell movement

High blood pressure occurs when there is too much blood flowing through the blood vessels at one time. by changing the amount of water in the blood, blood pressure can change. the excretory system can to lower blood pressure.which would most likely occur in the kidney? a)more water would be transferred from the nephron.b)less water would be absorbed into the nephron.c)the amount of water in the bladder would decrease.d)the amount of water in the blood would increase.