Please answer i am not having any motivation im very tired please answer giving brainliest look at photo and answer.

What must be true for natural selection to heppen

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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