Students test the response of fruit flies to different stimuli and determine if there is a significant change in their behavior. They do this by constructing a choice chamber from drinking straws and cotton swabs and exposing the flies in the chamber to two environments, one on each end of the straw. Students then conduct a chi square test to determine if the flies display taxis and are indeed favoring one environment over another.
Source: Advanced Biology Through InquiryPreview Download
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