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Biology, 22.06.2019 05:30
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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In which of the following relationships is one organism always benefited while the other organism is always harmed
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Biology, 22.06.2019 08:20
Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.
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Does commensalism involve abiotic factors...
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