________ is a condition in which there is an abnormal excess of erythrocytes in the blood.
A. Leukemia
B. Anemia
C. Polycythemia
D. Thrombocytopenia
Answer:C
________ is a condition in which there is an abnormal excess of erythrocytes in the blood.
A. Leukemia B. Anemia C. Polycythemia D. Thrombocytopenia