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Anestetic [448]
3 years ago
11

During experiments with shoot tips' response to light, the Darwins concluded that phototropism is caused by __________, Boysen-J

ensen added that phototropism is caused by __________, and Went further added that phototropism is caused by __________.
Social Studies
1 answer:
alexandr402 [8]3 years ago
8 0

<em>Answer:</em>

<em>D. a signal; a chemical; auxin                      </em>

<em>Explanation:</em>

<em>Phototropism</em><em> is described as a phenomenon that involves the growth of a specific organism as an outcome towards a light stimulus. It is generally observed or found in plants yet occurs in a few other organisms, for example, fungi. The different cells that are being found on the plants that are placed far from the light posses a specific chemical known as 'auxin' that generally reacts when the "phototropism" occurs.</em>

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