Homeostasis

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1. Which of these is a disadvantage of negative feedback?

  • Delay in starting response
  • Delay in stopping response (overshoot)
  • Doesn't function in mild climates
  • Several mechanisms involved
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2. What are conformers?

  • internal state matches external environment
  • maintaining internal state by avoiding external change
  • Internal state is different to external environment
  • maintaining constant internal state

3. What is enantiostasis?

  • Changing homeostasis by changing a physiological variable to compensate for change in another
  • Changing homeostasis by changing a metabolic variable to compensate for change in another
  • Maintaining homeostasis by changing a physiological variable to compensate for change in another
  • Maintaining homeostasis by changing a metabolic variable to compensate for change in another

4. What is acclimatisation?

  • Adaptation that alters negative feedback gradually
  • Adaptation that alters positive feedback gradually
  • Adaptation that alters negative feedback quickly
  • Adaptation that alters positive feedback quickly

5. What is extrinsic regulation?

  • Slow response through the whole body via interactions between organ systems
  • Slow response through the whole body via interactions between organ systems
  • Fast response through the whole body via interactions between organs
  • Fast response through the whole body via interactions between organs

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