Why is it advantageous that the lymphatic system lacks pump?

The lymphatic system's lack of a central pump allows it to rely on the body's natural movements and muscle contractions to facilitate lymph flow, making it more efficient in responding to varying levels of activity. This passive system also helps prevent overloading and ensures that lymph is filtered through lymph nodes, enhancing immune responses. Additionally, the absence of a pump reduces the risk of pressure-related damage within the system, allowing for more flexible and adaptive function.