Could, sometime, our blood be replaced next to a regenerate serum of oxygen?
Answer:
If there be something superior to the blood we have, we would hold evolved to have it.
JERSE,
UNTIL YOU LEARN ABOUT ANATOMY YOU WON'T UNDERSTAND WHY WE NEED BLOOD TO EXIST.
Um, no. There is greatly more to blood than just blood cell. There are platelets and white blood cells and MILLIONS of different kind of antibodies and lots of different hormones and they are all at diffferent level in different nation. There would be no way to duplicate that. If we replaced everyone's blood next to the same "serum" type stuff, some ethnic group could reject the serum and go into multiple system washout. We also wouldn't eliminate any diseases by doing this because microbes, viruses, fungi etc. live everywhere and they will find a agency to live in this alien serum just as surrounded by blood. There are so many other things that wouldn't work as far as the human physiology contained by this but it would make this message opening too long. I really don't think it would relief us out because blood is the way it is for a function.