Immune Response in biochemistry
Antibodies bound to an invading microorganism activate the complement system via

Entner-Doudoroff pathway
classical pathway
metabolic pathway
Embden Meyerhof 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?

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

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