a: Macrophage ~
b: combination reconnaissance and disposal units
What:
"Macrophages are like combination reconnaissance and disposal units. They get bits of molecules from invaders and present them to T-cells for identification. They can also surround and digest dead cells and foreign substances in the blood."
Useful?
Writer: Tak Wah Mak
LCC:
Where:
Date: Feb 23 2014 8:08 PM
# 5053 Critique Analogy