Closed Circulatory System

A circulation system in which blood flows within a network of vessels
Real World Example
Imagine trying to deliver packages throughout a bustling city without a clear route or dedicated roads. Navigating such chaos is similar to how the closed circulatory system operates within our bodies, where blood flows through a network of vessels, much like delivery trucks following specific roads. Just as roads provide an organized path for trucks to efficiently deliver goods to their destinations, blood vessels create a structured pathway that ensures oxygen and nutrients are delivered efficiently to cells throughout the body, keeping everything running smoothly.
Practice Version
