Immune Response in biochemistry
Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of

antibody via the alternative pathway
None of these
antigen via the alternative pathway
antibody via metabolic pathway

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Immune Response in biochemistry
If a person is vaccinated against a disease sometime in the past, which of the following is currently in your body?

Memory B lymphocytes for the antigen of this disease organism
The disease organism itself and antigens for the disease organism
All of these
A very high level of antibodies against the disease antigens

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