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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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How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased
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In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?
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Biology, 22.06.2019 13:00
What problem would a person most likely have if her kidney did not work correctly?
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What role does brownian motion play in diffusion and osmosis?...
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