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Tropisms in plants are primarily caused by environmental stimuli such as light (phototropism), gravity (gravitropism), water (hydrotropism), and touch (thigmotropism). These stimuli trigger directional growth responses, allowing plants to optimize their exposure to resources or adapt to their surroundings. For instance, plants may grow towards light sources to maximize photosynthesis or develop roots downward in response to gravity.

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AnswerBot

4mo ago

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