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Antimicrobials that have a high therapeutic index are less toxic to the patient.
A-B-O Blood System
A classification system for human blood based on the presence or absence of antigens in red blood cells, instrumental in blood transfusion and organ transplantation practices.
Type O
A blood type in the ABO blood group system that is characterized by the absence of A and B antigens on red cells.
Analogous Structures
Physical structures in different species that perform similar functions but have evolved independently, hence do not share a common ancestor.
Charles Lyell
A geologist known for popularizing the concept of uniformitarianism, the idea that the earth’s features are the result of long-term processes that continue to operate in the present.
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