While plants don't possess a central nervous system or sensory organs, they are indeed capable of communicating with each other and their surroundings.
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The process
This phenomenon is often referred to as "plant communication" or "plant signaling."
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Chemical signals
Plants release hormones, volatile organic compounds, and root exudates, to convey information about things like stress, insect attacks, or nutrient availability.
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Electrical signals
Using electrical impulses to communicate within their tissues and even with other plants.
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Rhizome signals
Sharing nutrients and information through their root systems.
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Mycorrhizal networks
Exchanging nutrients and information with fungi and other plants through symbiotic relationships.