Respuesta :

Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism.

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Answer:

Phototropism

Explanation:

Phototropism is the tropic movement of plants in response to light. Here, light serves as a stimulus and the plant shows growth movement in the direction of the stimulus, that is light.  Phototropism is exhibited due to auxin which is a plant growth hormone.

Example, the shoot of plants exhibit positive phototropism as it grows in the direction of light.  

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