Which of these correctly describes global warming? a) Global warming is caused by acid rain.
b) Global warming is the result of human activity.
c) Global warming is the result of evaporation.
d) Global warming is natural.

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