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The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.
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Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.
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What is the purpose of mitosis?...
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