I do not need to understand how TCP/IP works to use the internet, therefore TCP/IP is irrelevant to the internet.
Aint ignorance bliss?
Just make sure that your xeno-transplant surgeon understands evolution, or he might do a damnfool thing like putting a baboon heart in you. After all, since all created "kinds" are different he might as well give you a baboon heart as that of any other species.