Darwin discovered that the tips of plants are what contained the “influence” that caused phototropism to happen. Phototropism is a phenomenon by which a plant grows in response to light stimuli.
Darwin observed that the plant coleoptile tip senses light and it bends toward the source that irradiates light.
During his experiments, he observed that the removal of the plant's coleoptile tip or covering it with a non-transparent material meant that the plant lose its ability to grow (bend) toward the source of light.
In consequence, Darwin discovered that plants grow as a phototropic response to persistent unilateral light, which is detected at the coleoptile tip.
Learn more in:
https://brainly.com/question/24567669
Answer:
The tips of plants are what contained the “influence” that caused phototropism to happen.
Explanation:
