Why can't a person with type B blood (recipient) receive a bloodtransfusion from someone with type A blood (donor)?
| the recipient's anti-B antibodies will react with the donated Bantigens |
| the recipient's anti-A antibodies will bind to the A antigensof the donated blood cells |
| the recipient's anti-A and anti-B antibodies will react withthe donated blood cells |
| the recipient's anti-O antibodies will bind to the O antigen ofthe donated blood cells |
| no reaction would occur because the B-type individual does nothave antibodies |
Many tens of thousands of people who were seen as \"unfit\" weresterilized or killed by the Nazi regime to intentionally preventthem from reproducing. This is an example of:
| positive natural selection |
How is innate immunity different from adaptive immunity?
| Adaptive immunity is fast and generalized; innate immunity isslow and specific. |
| Innate immunity targets cancers and transplants; adaptiveimmunity targets viruses and bacteria. |
| Innate immunity is fast and generalized; adaptive immunity isslow and specific. |
| Adaptive immunity releases cytokines; innate immunity producesantibodies. |
| Innate immunity is present in fetuses and children whereasadaptive immunity is only present in adults. |
