Respuesta :

the most appropriate answer is Response !!

It is due to auxin present in tip of stem !!

Answer is response

The growth of a plant toward light is an example of response. This response is called phototropism. The growth of plant parts towards light is phototropism. Growth towards light is positive phototropism, example growth of stem towards light. Growth away from light is negative phototropism, example, growth of roots.

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