The third largest desert in the world, and the largest non-polar desert is the Sahara. Situated in North Africa, the Sahara makes up parts of Algeria, Chad, Egypt, Eritrea, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia, and Western Sahara. The Sahara Desert spans over 9,400,000 square kilometers across the continent, and is the world's hottest desert.
âº A donor is also someone who gives blood or who agrees to give an organ or body part to help someone else. (Definition of âdonorâ from the Cambridge Academic Content Dictionary Â© Cambridge University Press)
Autologous - The donor and the recipient are the same person (example would be using a patient's own skin to do a skin graft) Nonautologous - The donor and the recipient are not the same person (example would be using donor skin to do a graft) Synthetic - Material is not biologically derived (meaning it did not come from a living thing)