A researcher dissected the retinas of 20 randomly sampled fish belonging to each of two subspecies of
Question:
A researcher dissected the retinas of 20 randomly sampled fish belonging to each of two subspecies of guppy in Venezuela. Using a sophisticated
laboratory apparatus, he measured the two groups of fish to find the wavelengths of visible light to which the cones of the retina were most sensitive. The goal was to explore whether fish from the two subspecies differed in the wavelength of light that they were most sensitive to.
a. What are the two variables being associated in this study?
b. Which is the explanatory variable, and which is the response variable?
c. Is this an experimental study or an observational study? Why?
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a Subspecies group and wavelength of maximum sens...View the full answer
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Related Book For 
The Analysis Of Biological Data
ISBN: 9781319226237
3rd Edition
Authors: Michael C. Whitlock, Dolph Schluter
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