Lung

Real World Example

Imagine trying to filter out the specific clothes you need from a pile of laundry while also discarding the ones you no longer need. This task is similar to how the lungs work; they selectively absorb oxygen from the air (like picking out the clothes you need) and expel carbon dioxide from the blood (like discarding the clothes you don’t need). Just as you separate what's necessary from what's not in your laundry, the lungs manage the exchange of gases, ensuring your body receives oxygen while removing waste gases efficiently.