I’m not sure what the answer is.

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 kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million