AP PSYCHOLOGY

Detailed explanation-1: -Maintaining homeostasis requires that the body continuously monitors its internal conditions. From body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. A set point is the physiological value around which the normal range fluctuates.

Detailed explanation-2: -Adjustment of physiological systems within the body is called homeostatic regulation, which involves three parts or mechanisms: (1) the receptor, (2) the control center, and (3) the effector. The receptor receives information that something in the environment is changing.

Detailed explanation-3: -The immune response contributes to homeostasis by helping to fight off infection and heal after infection or trauma. During an infection, molecules called pyrogens are released, which alert the brain to increase the temperature of the body, causing a fever.

Detailed explanation-4: -Answer and Explanation: Three substances in the body whose levels are controlled by homeostasis include water, carbon dioxide, and sodium.