I would start by stating that it's the white blood cells that are trying to fight you. Mention phagocytosis. And describe what it looks like. Basically this is just asking for you to explain how the immune system works within the body. You can PM for a good site to use as a source if you don't know how this works within the body.
Answer:
The increasing demand for health care by people born between 1946 and 1964 has created more health science careers.
Hope this helps!
I am going to say A. Cutting down trees to make way for a mall because we need the trees more because they are the ones who take in carbon dioxide if we didn't have trees and plants we would die
I don't see anything following this, however the growth of bacteria is due to people not washing their hands or cuaghing on others and/or doing other things that are unsanitary.
