Does anyone know the answer to this id be forever grateful if someone could answer

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.

This is the process of making a prediction based on the results of prior observations of similar events.

What monomers build nucleic acid? how many are there?