- Stimuli are changed in the environment (i.e. Temperature, Gravity or light chances)
- The plant has Receptors which can detect the stimuli
- Turn it into a Response, which take the form of Growth (Tropism)
- Tropism that involves light is called Phototropism.
- Tropism that involved Gravity is called Geotropism
- Tropism's might include Mitosis and cell elongation