The evolutionary explanations of sleep

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1. AO2: Capellini (2008) looked at previous studies with standardised procedures and found that animals who sleep in exposed positions sleep less. This supports which explanation?

  • predator avoidance
  • foraging requirements
  • energy conservation
  • waste of time
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2. AO2: Zepellin an Rechtstaffen (1974) found that small animals with a higher metabolic rate sleep more than large animals. This supports?

  • the foraging requirements explanation
  • the waste of time explanation
  • the energy conservation explanation
  • the predator avoidance explanation

3. AO2: Capellini (2008) looked at previous studies with standardised procedures and found that smaller animals with higher metabolic rates sleep less. This could be due to?

  • wanting to conserve energy
  • Foraging requirements
  • wanting to waste time
  • wanting to avoid predators

4. AO2: energy levels only drop in NREM sleep, not in REM sleep. This discredits which explanation?

  • the predator avoidance explanation
  • the foraging requirements explanation
  • the energy conservation explanation
  • the waste of time explanation

5. AO1: Sleep is a period of inactivity which is important for warm blooded animals who use lots of energy maintaining body temperature and for small mammals with a high metabolic rate.This refers to which evolutionary explanation?

  • Waste of Time
  • Foraging requirements
  • Energy conservation
  • Predator avoidance

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