For many years, it was believed that the earth was flat, that the earth was the center of the universe, and that the fire and water were part of the basic building blocks of life. as new evidence emerges or new discoveries are made, the way we explain the world changes.

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.