Integration, Control & Coordination

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1. What is an exogenous biological rhythm?

  • Generated by the internal environment, requires a pacemaker
  • Generated by the external environment
  • Generated by the external environment, requires a pacemaker
  • Generated by the internal environment
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2. What happens when clock proteins degrade?

  • Adds inhibition causing activation of clock genes
  • Adds inhibition causing degradation of clock genes
  • Removes inhibition causing activation of clock genes
  • Removes inhibition causing degradation of clock genes

3. The nervous system is .... and activates the ... system. The endocrine system is ... to respond and responds to ...

  • slow, gastric, fast, positive feedback
  • fast, endocrine, slow, negative feedback
  • slow, gastric, fast, negative feedback
  • fast, endocrine, slow, positive feedback

4. Which of these isn't true about the endocrine system?

  • Respond by acting on other body systems
  • Action on a close target
  • Sense internal change
  • Secretion into blood

5. Light activates photoreceptors in which part of the body to activate clock genes?

  • Retina
  • Skin
  • Hair
  • Mouth

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