Which is a definition for the term stress response?

Physiological or biological stress is an organism'sresponse to a stressor such as an environmental condition. Stress is the body's method of reacting to a challenge.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.