Before Jose begins his work as an X-ray technician, he reads a list of rules and procedures that his employer has developed to help prevent a dangerous situation from occurring. What are these rules called?

Answer the militia grew;

True, this is when someone has mood swings

Immunization is the introduction of a foreign substance to provoke  the immune response system.  immunizations are the same as vaccinations. it introduces foreign (but dead/ weakened) illnesses to train the body to fight against them. specific viruses and bacteria have specific antigens, antigens act sort of like name tags. these name tags the immune system recognize what's dangerous to the body and what's safe.