In this case you have unlimited iron, but only 6.40 moles of oxygen (O2). How much Fe2O3 can you produce? please

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.

Which of the following explains why a tree is often used as a model to represent the principle of common descent

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f