A farmer sprays his corn crop with pesticides each year. After 10 years, he realizes that the pesticides are no longer functioni
ng to kill the pests and his crop has been destroyed. Explain to the farmer how this happened. In your answer, be sure to explain how the resistance came about
why the pesticide work in the beginning but no longer works
what he can do to fix this problem
Becuase the chemicals can only work for a little in the pesticides so when bad weather comes around it finishes the rest of the chemicals in the pesticide.
Probably insects developed resistance to the pesticide.
Explanation:
The term resistance refers to an inheritable change in the population sensitivity,. In the exposed example, the first time that the farmer sprayed the pesticide, the insect population decrease sharply. This means that the chemical affected them severely. They probably passed this modification to the following generations, which expressed it, and developed resistance to the pesticide.
Answer: positive feedback loops enhance or amplify changes. this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes. this tends to hold a system to some equilibrium state making it more stable.
Answer: When a blood cells is place in Hypertonic solution, water will rush out of the cell, the cell will shrinks or crenates. This is because the solute concentration outside the cell is greater than solute concentration inside the cell.
Explanation:
Hypertonic solution is a solution that have greater or higher solute concentration outside the cell compare to the solute concentration inside the cell.
