What are the three different components of the highway transportation system

Hey would employ people

Answer(a) pressure to make weight for the wrestling team;

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. 

Umm im gona keep to myself on that one