👉 Red blood cells transport oxygen through hemoglobin-rich membranes, while white blood cells fight infections, each rapidly responding to bodily needs. A typical red blood cell takes about 120 days to produce, whereas a white blood cell's journey from bone marrow to bloodstream can be completed within hours. To complete the task: Step 1: Establish basic characteristics of both types; Step 2: Condense these into two concise sentences.
