第 1 题
1 分Which of the following best describes the role of negative feedback in homeostatic control?
IB Diploma Programme (DP) - SL & HL · Biology
D3.3 體內恆定（生物體）：练习题
5 道选择题即时批改，另有 3 道文字题附完整解题步骤，全部围绕「D3.3 體內恆定（生物體）」。
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第 2 题
1 分How does thyroxin deficiency affect body temperature regulation?
第 3 题
1 分A patient presents with high blood glucose levels but normal insulin levels in the blood. What is the most likely diagnosis and cause?
第 4 题
1 分Which of the following is a characteristic feature of homeostasis in the human body?
第 5 题
1 分During a fever, the body's set point for temperature is adjusted. Which part of the brain acts as the integration center for thermoregulation and resets this set point?
第 6 题
2 分State the specific name of the hormone produced by adipose tissue that targets the hypothalamus to help regulate body mass by suppressing appetite.
先自己写一遍答案，再对照解题步骤。
第 7 题
3 分In the context of osmoregulation, explain how the pituitary gland responds to a decrease in the water potential of the blood to maintain homeostasis.
先自己写一遍答案，再对照解题步骤。
第 8 题
5 分Analyze the compensatory physiological mechanisms the human body employs to restore core body temperature following prolonged exposure to a cold environment, including both behavioral and physiological responses.
先自己写一遍答案，再对照解题步骤。
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