Which one of the following statements is true regarding voluntary and involuntary responses?
a. voluntary responses originate in the sensory receptors.
b. voluntary responses control the activity of glands.
c. involuntary responses may include the spinal cord and not the brain.
d. involuntary responses are part of the autonomic system.

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.