To initiate an induced immune response to herbivory,a plant must first sense the herbivore's attack.It does this when the herbivore's attack causes either

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When an herbivore attacks a plant, it can cause the release of a chemical elicitor (such as systemin, jasmonic acid, or ethylene) from damaged tissues. These elicitors can act as a signal for the plant to initiate an induced immune response. Alternatively, the physical damage caused by the herbivore may also trigger a change in membrane potential in the plant's cells, which can also serve as a signal for induced defense responses to occur. Therefore, option C, which includes both release of a chemical elicitor and a change in membrane potential, is the best choice for how a plant can sense herbivory and initiate an immune response.

To Initiate an Induced Immune Response to Herbivory,a Plant Must