What type of energy does active transport use ?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

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.

If animal agriculture was eliminated, how much grain would become available for human consumption?