Explore the chambers, and after 20 minutes

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Question: A student wanted to determine whether fruit flies were phototaxic (attracted to light), and so she set up two choice chambers and introduced four fruit flies into each chamber. One chamber was placed under a fluorescent light, and the other was placed under the same light but one end of the chamber was wrapped in foil. All flies were healthy and the same age, and the light intensity and temperature were the same for both chambers. She allowed the fruit flies to explore the chambers, and after 20 minutes counted the number of flies at each end of the chambers. Which of the following represents a significant flaw in this experimental setup? There is a small sample size. Measurable results cannot be expected.

Reference no: EM133545533

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