Which protein serves as a chemical messager
a. hemoglobin
b. actin
c. myosin
d. insulin

In order to clone adult animals, scientists typically begin with a(n)

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

Which of the following is a testable hypotheses?