Question 1 Multiple Choice 0.5 points Homeostasis refers to … allowing the internal environment to conform to changes in the external environment. the maintenance of constant, ideal conditions in the internal environment. regulation of the internal environment so that it is similar to the external environment. the tendency of the internal environment to fluctuate in response to changes in the external environment. modification of the external environment to make it more compatible with life. Question 2 Multiple Choice 0.5 points Which one of the following is NOT part of a negative feedback mechanism that maintains homeostasis? Increased rate of breathing during and after exercise. Formation of glycogen in the liver immediately following a meal. Movement of the baby through the cervix during childbirth. Vasoconstriction in the skin during exposure to cold. Increased excretion of Na+ ions into the urine following consumption of salty pretzels. Question 3 Multiple Choice
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This note was uploaded on 10/25/2010 for the course BISC 220L taught by Professor Herrera,mcclure during the Spring '07 term at USC.