AnswersUs

Context The question explores the process of red blood cell production in birds, considering their unique skeletal structure with hollow bones. It draws a comparison to humans, where red blood cells are produced in the bone marrow. The inquiry seeks to understand if there's a specific bone or a different location for red blood cell production in birds due to their hollow bone structure. Simple Answer Birds, like humans, need red blood cells to carry oxygen throughout their bodies. These cells are made in the bone marrow, which is a spongy material inside bones. While birds have hollow bones, they still have bone marrow. This marrow is found in the long bones of their wings and legs. So, even though their bones are hollow, birds make their red blood cells in the bone marrow just like us! Detailed Answer Birds, like humans, require red blood cells to transport oxygen throughout their bodies. These cells are produced in the bone marrow, a spongy substance found within bones. Although ...

Context The question focuses on the apparent contradiction between type O blood being universally accepted as a donor due to the absence of antigens on its red blood cells and the presence of anti-A and anti-B antibodies in type O plasma. It asks why these antibodies don't cause a reaction in recipients who are not type O when receiving type O whole blood, especially considering the severe reaction a type O individual would experience if given blood of other types. Simple Answer Type O blood doesn't have A or B antigens on its red blood cells, so it won't trigger an immune response in anyone, making it universally acceptable as a donor. Type O plasma contains antibodies against A and B antigens, but these antibodies are present in a very small amount. When you give only the red blood cells (packed red blood cells), you are essentially giving only the blood cells without the plasma, hence no antibodies are given. The antibodies in type O plasma are diluted in the recipient...