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The nervous system - Coggle Diagram

- - - - → relay nervous coordinationor CNS brian
        
        → motor nervous
        
        → effector ‘muscle’
        
        → respond ‘move’
- - - - Dependent - reaction time
      - Independent - caffeine / not
      - Control- volume of coca cola drop
      - ruler from same height
      - same technique
    - - Work in pairs
      - I person rest arm a desk + has hand over the edge in a C shape
      - Other person holds ruler with 0cm level with top finger on C shape
      - Person holding the ruler drops it and person cating ruler catches it
      - Record the Cm just above top top finger on rule when caught .eg.15.3cm
      - Record step 1-5 x5 and calculate mean
      - Swap person + repeat all step