The answer is; cell surface receptors that are recognized as antigens by the recipient's immune system.
Therefore the organ is attacked as a foreign substance . This is why organ transplants are given by the closest family member to reduce the antigen variability that causes transplant rejection. Tissue typing is done to ensure that the organ or tissue is as similar as possible to the tissues of the recipient.
Answer:
20 minutes
Explanation:
Divide distance by speed to get time
D/S = t
350/17.5 = 20
(Just an fyi you posted this in biology)
Electrons are found outside the nucleus.
