a: Blood ~
b: transportation system
What:
"Blood is like the body's transportation system, busy making deliveries and pickups. As blood circulates throughout the body, it delivers oxygen and nutrients to all the places they're needed."
Useful?
Writer: Maureen F. Edelson, MD
LCC:
Where:
Date: Aug 11 2014 7:22 PM
# 6047 Critique Analogy