Ai
Created page with "==Introduction== Plants, as sessile organisms, have evolved a myriad of defense mechanisms against insects and herbivores. These mechanisms can be broadly classified into two categories: constitutive defenses, which are always present in the plant, and induced defenses, which are produced or mobilized in response to herbivore attack. Image:Detail-38981.jpg|thumb|center|A close-up image of a plant leaf showing signs of insect damage..."
