Dr. Foster was studying the effects of zinc on the common cold. She hypothesized that zinc would shorten the duration of the common cold. She conducted a study in which patients suffering from a cold were given daily doses of either zinc or a placebo and the amount of time it took for them to feel better was measured. whats the independent variable: whats the dependent variable: whats the constant variable: whats the control group: whats the experimental group:
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When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal
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Regarding most of the narrator’s story, which word best describes the tone?
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Dr. Foster was studying the effects of zinc on the common cold. She hypothesized that zinc would sho...
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