Final answer:
Hematocrit is the volume percentage of erythrocytes in blood samples. Hemoglobin is an oxygen-carrying compound in erythrocytes.
Step-by-step explanation:
The hematocrit is the volume percentage of erythrocytes in a sample of centrifuged blood. In normal blood, about 45% of the sample is erythrocytes. Hemoglobin is an oxygen-carrying compound in the erythrocytes that binds to oxygen. The values of hematocrit and hemoglobin can vary depending on factors such as gender and health condition.