pigs have the most similar organs to humans.
A Pig
because they do not have the same organs as we humans
guts is a widely used term refering to the internal organs of an animal... sharks do have organs just like us humans. Very different organs but organs, so the answer would be yes.
It is a question of morals. Is it right to transplant animal cells, tissues or organs into humans?
Chimps closest to humans.
The theory of using animal organs in human transplants is called Xenotransplantation. (Whereas using human organs in human transplants is called Allotransplantation). Xenotransplants are incredibly rare, since the outcomes are nowhere near as good as allotransplants, and the risks are far greater.
Of course I have organs; we're humans.
Its to do with genetic compatabilty, its hard enough finding a human match let alone an animal, however Pig organs have been used in humans
All organs generally.
Cells don't have organs.
Yes.
The heart and lungs.