Not enough for everybody waiting for a transplant to receive one.
patients in need of organ transplants outnumber available organs three to one.
The graph hows that from 1995 - 2004, the number of donors has decreased, as has the number of transplants being carried out; the number of people needing transplants however, has significantly increased. This means that there is an in balance between the number of organs available for transplant and the number of organ donors, which means that there will obviously not be enough organs to provide each, or even most of those on the transplant list (in need of an organ) with the organ that they need.
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.
not too sure
This is most likely because of the special porcess to match up organs. Also, it has to do with the age people die. You can't donate a senior's organs. Also, the type of death has an influence. If someone dies of cancer, it's unsafe to donate organs. If someone is in a good health and died in a car accident/etc. then their organs might be suitable. The family has to agree on it too.
people have transplants because their organs have problems there for they need new ones to help them survive or else they will die.
Hair Transplants is available to everyone. The preparation is just as important as the recovery. Find out what steps you should take leading up to your procedure.
They already happen, so clearly social consensus is that "they should happen". Otherwise transplants would not be happening. Also, those who donate their organs are clearly in favor of organ transplants happening.
None unless they have been genetically modified to be suitable - the organs are 'humanised'. Then, it is primarily pigs that are used.
Routinely transplanted organs are: heart, kidneys, liver, lungs, pancreas, small intestine and cornea. Other transplants are available, but are not routine. Some organs are just not routinely transplanted because you can live without them, e.g stomach, bladder, spleen, colon etc... (Yes, you can live without your stomach, it's only the small intestine which is necessary for food absorption.)
To preserve the organs before the transplant process begins.
Ice preserves the organ until placed in a body =D