Task: Text Categorization
Input (English): Thalassemia patients have a reduced quantity of these cells, which can be measured using the mean corpuscular volume. The schizont phase of malaria is found within these cells. At the end of their lifespan, which is about 120  days, these cells are relocated to the spleen and destroyed. The body condition when a low number of these cells are present is anemia. These cells, which do not have nuclei, gain their color from an iron-containing protein known as hemoglobin. For 10 points, name these cells in the bloodstream, which carry oxygen throughout the body.
Output (English): Science