First: Scarring
Scarring has nothing to do with defense
Second: False
Its B and T cells (lymphocytes)
Third: B cells
B cells produce antibodies
Answer:
doing exercises
Explanation:
these like running use much calories than normal
Cardiovascular disease because it has to do with the heart and smoking cause lung stuff and the lung gose with heart stuff
Answer:
This is a question for your self
I think it's called infectious agent or something close to that.
