| Across |
| 3. |
A classification based on the presence or absence of antigens. |
| 5. |
Blood that has B antigens and anti-A antibodies. |
| 7. |
A protein that helps destroy foreign substances in the body. |
| 9. |
A protein that determines if blood is positive or negative. |
| 10. |
Cells that fight infection and disease |
| 11. |
The liquid portion of blood that carries cells and nutrients. |
|
|
| Down |
| 1. |
The clumping of red blood cells during incompatible blood transfusions. |
| 2. |
Blood that has no A or B antigens; universal donor. |
| 4. |
Blood that has both A and B antigens; universal recipient. |
| 6. |
Blood components that help with clotting. |
| 7. |
A substance on the surface of red blood cells that triggers an immune response. |
| 8. |
Blood that has A antigens and anti-B antibodies. |
| 9. |
Cells that carry oxygen throughout the body. |
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