Answer:
The three mechanisms of resistance crop are genetic resistance, tolerance, and avoidance. Genetic resistance is a trait that is naturally present in the crop, which makes it resistant to pests or diseases. Tolerance is the ability of the crop to tolerate pest or disease pressure without suffering major damage or yield loss. Lastly, avoidance is the ability of the crop to reduce the risk of pest or disease pressure by growing in a location or environment that is unfavorable to the pest or disease.
Step-by-step explanation: