D. A condition that causes narrowing of the coronary arteries so blood flow to the heart muscle is reduced carotid arteries
B) The enzyme has active sites where the substrate binds with the enzyme to form a complex. When the substrate binds to the active site, an induced fit is formed where the enzyme changes its shape in order to better serve the substrate and lower the activation energy of the reaction
The answer is D. The river basin goes out into the ater shed leading straight for the ocean!