The immune system is a system of many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue.o function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue.
The cost to run for president in the general election can amount to at least $70 million USD, although the amount of money required can vary. It is possible that at some point in the future, all presidential candidates will run without taking any federal contributions.
the estimate comes from a firm that tracks tv advertising melissa block host next year s elections are expected to see record sums of money poured into tv ads here s one estimate $ 4 4 billion that would be up from $ 3 billion in 2012 the last presidential cycleilner is the one who put the $ 4 4 billion price tag on 2016 s political tv ads she says all of the growth is expected to be in the presidential race mainly because there are fewer competitive elections in the house and senate