Adrop in blood pressure results in constriction of the blood vessels. blood pressure functions as the in a negative feedback system. see section 4.8 (page 94) a drop in blood pressure results in constriction of the blood vessels. blood pressure functions as the in a negative feedback system. see section 4.8 (page 94) control center sensor controlled variable effector

The answer is Controlled variable

Constriction of blood vessel will reduce its diameter and increase the resistance. this will lead to higher blood pressure. The purpose of blood vessel constriction is to control the blood pressure at a certain range to make sure the blood could be distributed. Blood pressure would be the controlled variable of this mechanism.

located offshore, in the arctic and pacific oceans

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.