Immune System
Vaccination introduce small amount of a disease to your body so that your natural immune systems builds anti-bodies and such to fight the disease. This makes your immune system stronger so that it can more effectively fight the disease or completely resist the disease when you get exposed to the real thing. How is that?
Body systems work together to keep the body healthy and the body systems are interdependent (they rely on each other).
deliver oxygen and nutrients to the cells, repair the body and fight disease. transport waste products away from the cells.
is the ability of the body to resist disease to fight disease..
Prolonged stress begins to wear the body down over time. The body is then unable to effectively fight illness and disease.
That is the organismal level. Many organisms have several organ systems.
All the systems of the body work together; there are no isolated systems.
Osteoporosous and Aids
A vaccines helps because they put some of the disease in your body then your body can get use to it so if you get that disease your body can easily fight it out of you!
Yes
antibodies
white blood cells