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

  • Delay in stopping response (overshoot)
  • Several mechanisms involved
  • Doesn't function in mild climates
  • Delay in starting response
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2. Which of these is not a mechanism of maintaining cell environment?

  • Maintain temperature
  • Maintain weight of products
  • Removal of toxic wastes
  • Maintain electrolyte levels

3. What is the difference between control systems and maintenance systems?

  • Control systems regulate indirectly, maintenance systems don't regulate at all
  • Control systems regulate indirectly, maintenance systems regulate directly
  • There is no difference
  • Control systems regulate directly, maintenance systems regulate indirectly

4. Which of these is not a control system?

  • Skeleton/musculative
  • Brain
  • Endocrine system
  • Nervous system

5. What are regulators?

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


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