Different kinds of human cells have different specialties; what are four examples of human cell specialization in the comic?

How do macrophages identify germs?

What are the signs and symptoms of inflammation? What are cells doing to cause those symptoms?

What is pus mostly made of?

What's one way human cells send signals to each other?

What are two ways germs can do damage to the cells in people?

How do antibodies help fight germs?

How does the immune system figure out what antibody to produce to fight a given kind of germ?

Why is it important for macrophages to patrol both the external surface of the body (the skin) and the internal “surface” (the linings of the mouth, lungs, stomach, intestines, etc.)?