How do plants respond to stimuli?

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Answer 1

Plants respond to stimuli through various mechanisms, including movement, growth, and biochemical reactions. Some common responses to stimuli include tropisms (response to directional stimuli such as light or gravity), thigmotropism (response to touch or mechanical stimulation), and chemotropism (response to chemical stimuli). Additionally, plants may also produce hormones such as auxins, cytokinins, gibberellins, abscisic acid, and ethylene in response to environmental cues. These hormones help regulate plant growth, development, and responses to external stimuli.

Answer 2

Plants respond to various stimuli through processes like tropisms, which are growth movements in response to external stimuli. For example, phototropism is the growth of a plant towards light, while gravitropism is the growth of roots downward in response to gravity. Additionally, plants can respond to touch, temperature, and chemicals in their environment through different physiological and biochemical responses.