interested in how diet and water temperature affect the growth rates of fish.  She hypothesizes that fish receiving a high protein diets and in warmer temperatures will have enhanced growth rates. She has four treatment groups: Fish tanks in a laboratory a

Human Anatomy & Physiology (11th Edition)
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A student studying aquaculture is interested in how diet and water temperature affect the growth rates of fish.  She hypothesizes that fish receiving a high protein diets and in warmer temperatures will have enhanced growth rates.

She has four treatment groups:

  • Fish tanks in a laboratory at 22 degrees C and high protein diet.
  • Fish tanks in a laboratory at 22 degrees C and low protein diet.
  • Fish tanks outside with a temperature of 26 degrees C and high protein diet.
  • Fish tanks outside with a temperature of 26 degrees C and low protein diet.

Explain why her “hypothesis” isn’t really a complete scientific hypothesis—it is merely a prediction.  What’s missing?  What could she add to improve it? 

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