Anti Bodies
The humoral immune response relies on the production of soluble proteins called

antibodies
none of these
macromolecules
lymphocytes

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Anti Bodies
Each IgA antibody molecule consists of

four polypeptide chain and has two antigen binding site
three polypeptide chain and has two antigen binding site
two polypeptide chain and has two antigen binding site
two polypeptide chain and has one antigen binding site

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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
contains type B antigens on the surface of red blood cells
can be used to donate to type AB individuals

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