Use the following information to answer the following question(s): You wake up one morning feeling slightly under the weather. A close family member enthusiastically suggests that you take some Echinacea, an herb commonly used as a cold remedy. You then decide to design an experiment to test Echinacea and see if this claim is true. You think, "If taken at the beginning of a cold, Echinacea will reduce cold symptoms."If you give 100 sick people tablets similar to Echinacea but with no herb (called a placebo), and do not tell them whether they are receiving the placebo or the Echinacea tablet, what kind of control would this be?
A. A positive control, since you are expecting a change to happen in this control group
B. A blind control, since the sick people do not know whether they are receiving the placebo or the Echinacea
C. A negative control, since you are expecting no change to happen in this control group
D. Both B and C are correct
Answer: D
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a. drift. b. shift. c. re-assortment. d. modification.
_____ is a simple sugar (a monosaccharide)
a. Glucose d. Starch b. Sucrose e. Glucose and ribose c. Ribose f. Glucose, sucrose, and ribose
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