What size goes where?

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

What is the next step in the process after a substrate enters the active site of an enzyme

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water