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SBI4U - Grade 12 Biology - QUIZ

SBI4U · Grade 12 Biology

Grade 12

Questions
10 Questions

Practice 10 questions on SBI4U - Grade 12 Biology at Grade 12. Free AI-generated quiz on uNotes — track your score, retake anytime.

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Questions

  1. 1According to the course materials, what is the definition of homeostasis?

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2
Which of the following are the three essential elements of a homeostatic mechanism?
  • 3Which physiological response occurs when the human hypothalamus detects that the body temperature is too high?
  • 4Which part of the brain acts as the 'thermostat' and integrator for temperature regulation in mammals?
  • 5What are the universal mechanisms through which animals exchange thermal energy with their environment?
  • 6Which statement best describes a poikilotherm?
  • 7What specific physiological adaptation allows the wood frog (Rana sylvatica) to survive being frozen in winter?
  • 8Which of the following is an example of a positive feedback system described in the notes?
  • 9What term is used for the hibernation-like state that cold-blooded animals (reptiles and amphibians) enter during cold weather?
  • 10What are the components of the 'internal environment' in a typical adult human?