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plant responses (tropism response (types of tropism (gravitropism (is the…

- - - - growth away from the direction of the stimulus
    - - growth in the direction of the stimulus
  - - - is the growth response to a mechanical stimulus
    - - is the growth response to gravity
      - there is a negative gravitropism in the stems of the plants as the grow in the opposite direction
      - there is a positive response of gravitropism in the roots as they grow in the same direction as the stimulus
    - - it is the growth in the direction of the light
      - the auxin aides in this process by the unequal distribution resulting to the curve of the stem towards the source of light