What are organisms of the same species that are at the same level of descent from a common ancestor called? a. species of ancestors
b. generations
c. populations
d. hybrid levels

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half