Anti Bodies
The main function of antibodies is to

protect the circulatory system
chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
kill all the foreign bodies
generate antigens, thus conferring immunization

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Anti Bodies
Type A blood

can always be used to donate to an Rh+ individual
can be used to donate to type B individuals
can be used to donate to type AB individuals
contains type B antigens on the surface of red blood cells

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