Immune System

The Immune System consists of white blood cell that get get pumped around the body by the Circulatory System. It is the system that fights of diseases. It is a very important system, even though some people are born without it. Leukemia and Asthma are both diseases of the Immune System.

1. What does the immune system do?

2. What does the Immune System have to do with the Circulatory System?

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