2.79 Plants and stimuli

• Stimuli - Changes in Environment
  Change in light
  Change in temp
• Receptor - detect stimuli
• Response - Response to the stimuli
  Takes form of growth
• Tropism - Growth response to stimuli
  Phototroposim - Growth by light
  Geotropisim - Growth by gravity
• Plant hormone/regulator - Reactors of plants
  Ex:Auxim