With help of an experiment show that plants respond to sunlight.
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This is phototropism in action. Darwin correctly concluded that plants are able to “see” light using the tips of the plant shoots, rather than through the stalks. ... Normally, plants growing with an unshaded light source will grow straight up towards the sun because auxin is evenly distributed all around the shoot.
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Hey mate here is your answer
Normally, plants growing with an unshaded light source will grow straight up towards the sun because auxin is evenly distributed all around the shoot. ... The tips of the control seedlings and the seedlings with the bases covered could still sense the light, so they grew towards the sunlight.
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