i think it is because they have a different blood type that wont work in their body
Because of the immune system. It regards them as something which harms the body.
Because people might think that the organ doners may have AIDS or HIV and do not want to catch it from them by getting the transplant.
Kidney's are usually transplanted from a family member who is a match as you only need one. Other organs such as lungs and heart are transplanted from a recently deceased person who had opted to donate their organs at the time of their death, they are then removed from the donor and taken to the receipient who is in most need of the particular organ who is most likely to be a match. (blood type etc. is taken into consideration)
Organs get transplanted due to disease or deformity. So if a person's heart started to fail due to disease, they may be eligible for a new heart if any are available and have the correct blood type.
An organ transplant can cause tissue rejection, where the patient's immune system tries to destroy the transplanted organ, because the foreign organ is mistaken for pathogens.
No, the eye can still function normally if transplanted into a living person. Just because a person has died does not mean their organs don't work, it just means the dead person doesn't use them any longer.
Yes, certain organs, e.g., one of a person's two kidneys, or part of the liver, can be transplanted from a living donor.
kidney
A heart.
No
Lungs can be transplanted, if they are fresh.
A kidney.
Medication that keeps a person from rejecting a transplanted organ.