The plants are inherent defense mechanism to protect them from predators and pathogens. Disability, largely complementary defensive adjustments to help the plants to survive and reproduce successfully to move. Allelochemicals act as toxins in plants and in some cases reduce the digestibility of plant cell wall.
Some of the external structural properties of stem and leaves (spines, thorns, spines, etc.) in order to prevent insect damage greatly. These mechanical protection to deter, injure or kill herbivores. Some protective substances such as wax, resin, lignin, etc. in the epidermis of plants and herbivores to avoid feeding set.
Herbivores are critical elements in the food chain because they are a source of energy for the highest-ranking authorities in the food chain. Plants are the only source of food for herbivores, the joint development of devices that enable them to buy food, regardless of plant defense mechanisms. Some of these changes are:
Can reduce the synthesis of enzymes, secondary plant compounds
* The existence of internal symbiotic bacteria, fungi, and protozoa to break down the cellulose from plant, so that they can be digested by herbivores helps
* Mechanical modifications to eat incisors months helps the soft leaves.
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